1 files changed, 170 insertions, 172 deletions

diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index 50e0b612a8a2..352547eabf7b 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -38,19 +38,19 @@
  *
  * Revision 1.0:  April 1st 1997.
  *                Initial release for alpha testing.
- * Revision 1.1:  April 14th 1997. 
- *                Incorporated Richard Hudsons suggestions, 
+ * Revision 1.1:  April 14th 1997.
+ *                Incorporated Richard Hudsons suggestions,
  *                removed some debugging printk's.
  * Revision 1.2:  April 15th 1997.
  *                Ported to 2.1.x kernels.
- * Revision 1.3:  April 17th 1997 
- *                Backported to 2.0. (Compatibility macros). 
+ * Revision 1.3:  April 17th 1997
+ *                Backported to 2.0. (Compatibility macros).
  * Revision 1.4:  April 18th 1997
- *                Fixed DTR/RTS bug that caused the card to indicate 
- *                "don't send data" to a modem after the password prompt.  
+ *                Fixed DTR/RTS bug that caused the card to indicate
+ *                "don't send data" to a modem after the password prompt.
  *                Fixed bug for premature (fake) interrupts.
  * Revision 1.5:  April 19th 1997
- *                fixed a minor typo in the header file, cleanup a little. 
+ *                fixed a minor typo in the header file, cleanup a little.
  *                performance warnings are now MAXed at once per minute.
  * Revision 1.6:  May 23 1997
  *                Changed the specialix=... format to include interrupt.
@@ -60,10 +60,10 @@
  *                port to linux-2.1.43 kernel.
  * Revision 1.9:  Oct 9  1998
  *                Added stuff for the IO8+/PCI version.
- * Revision 1.10: Oct 22  1999 / Jan 21 2000. 
- *                Added stuff for setserial. 
+ * Revision 1.10: Oct 22  1999 / Jan 21 2000.
+ *                Added stuff for setserial.
  *                Nicolas Mailhot (Nicolas.Mailhot@email.enst.fr)
- * 
+ *
  */
 
 #define VERSION "1.11"
@@ -154,7 +154,7 @@ static int sx_poll = HZ;
 
 
 
-/* 
+/*
  * The following defines are mostly for testing purposes. But if you need
  * some nice reporting in your syslog, you can define them also.
  */
@@ -188,7 +188,7 @@ static DECLARE_MUTEX(tmp_buf_sem);
 
 static unsigned long baud_table[] =  {
         0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
-        9600, 19200, 38400, 57600, 115200, 0, 
+        9600, 19200, 38400, 57600, 115200, 0,
 };
 
 static struct specialix_board sx_board[SX_NBOARD] =  {
@@ -216,7 +216,7 @@ static inline int sx_paranoia_check(struct specialix_port const * port,
                 KERN_ERR "sx: Warning: bad specialix port magic number for device %s in %s\n";
         static const char *badinfo =
                 KERN_ERR "sx: Warning: null specialix port for device %s in %s\n";
- 
+
         if (!port) {
                 printk(badinfo, name, routine);
                 return 1;
@@ -231,9 +231,9 @@ static inline int sx_paranoia_check(struct specialix_port const * port,
 
 
 /*
- * 
+ *
  *  Service functions for specialix IO8+ driver.
- * 
+ *
  */
 
 /* Get board number from pointer */
@@ -246,7 +246,7 @@ static inline int board_No (struct specialix_board * bp)
 /* Get port number from pointer */
 static inline int port_No (struct specialix_port const * port)
 {
-        return SX_PORT(port - sx_port); 
+        return SX_PORT(port - sx_port);
 }
 
 
@@ -309,7 +309,7 @@ static inline void sx_wait_CCR(struct specialix_board  * bp)
                         return;
                 udelay (1);
         }
-        
+
         printk(KERN_ERR "sx%d: Timeout waiting for CCR.\n", board_No(bp));
 }
 
@@ -329,7 +329,7 @@ static inline void sx_wait_CCR_off(struct specialix_board  * bp)
                         return;
                 udelay (1);
         }
-        
+
         printk(KERN_ERR "sx%d: Timeout waiting for CCR.\n", board_No(bp));
 }
 
@@ -338,34 +338,28 @@ static inline void sx_wait_CCR_off(struct specialix_board  * bp)
  *  specialix IO8+ IO range functions.
  */
 
-static inline int sx_check_io_range(struct specialix_board * bp)
+static inline int sx_request_io_range(struct specialix_board * bp)
 {
-        return check_region (bp->base, SX_IO_SPACE);
-}
-
-
-static inline void sx_request_io_range(struct specialix_board * bp)
-{
-        request_region(bp->base, 
-                       bp->flags&SX_BOARD_IS_PCI?SX_PCI_IO_SPACE:SX_IO_SPACE,
-                       "specialix IO8+" );
+        return request_region(bp->base,
+                bp->flags & SX_BOARD_IS_PCI ? SX_PCI_IO_SPACE : SX_IO_SPACE,
+                "specialix IO8+") == NULL;
 }
 
 
 static inline void sx_release_io_range(struct specialix_board * bp)
 {
-        release_region(bp->base, 
+        release_region(bp->base,
                        bp->flags&SX_BOARD_IS_PCI?SX_PCI_IO_SPACE:SX_IO_SPACE);
 }
 
-        
+
 /* Must be called with enabled interrupts */
-/* Ugly. Very ugly. Don't use this for anything else than initialization 
+/* Ugly. Very ugly. Don't use this for anything else than initialization
    code */
 static inline void sx_long_delay(unsigned long delay)
 {
         unsigned long i;
-        
+
         for (i = jiffies + delay; time_after(i, jiffies); ) ;
 }
 
@@ -378,7 +372,7 @@ static int sx_set_irq ( struct specialix_board *bp)
         int i;
         unsigned long flags;
 
-        if (bp->flags & SX_BOARD_IS_PCI) 
+        if (bp->flags & SX_BOARD_IS_PCI)
                 return 1;
         switch (bp->irq) {
         /* In the same order as in the docs... */
@@ -420,7 +414,7 @@ static int sx_init_CD186x(struct specialix_board  * bp)
         sx_out_off(bp, CD186x_PILR3, SX_ACK_RINT);      /* Prio for receiver intr    */
         /* Set RegAckEn */
         sx_out_off(bp, CD186x_SRCR, sx_in (bp, CD186x_SRCR) | SRCR_REGACKEN);
-        
+
         /* Setting up prescaler. We need 4 ticks per 1 ms */
         scaler =  SX_OSCFREQ/SPECIALIX_TPS;
 
@@ -448,7 +442,7 @@ static int read_cross_byte (struct specialix_board *bp, int reg, int bit)
         spin_lock_irqsave(&bp->lock, flags);
         for (i=0, t=0;i<8;i++) {
                 sx_out_off (bp, CD186x_CAR, i);
-                if (sx_in_off (bp, reg) & bit) 
+                if (sx_in_off (bp, reg) & bit)
                         t |= 1 << i;
         }
         spin_unlock_irqrestore(&bp->lock, flags);
@@ -472,7 +466,7 @@ void missed_irq (unsigned long data)
         spin_unlock_irqrestore(&bp->lock, flags);
         if (irq) {
                 printk (KERN_INFO "Missed interrupt... Calling int from timer. \n");
-                sx_interrupt (((struct specialix_board *)data)->irq, 
+                sx_interrupt (((struct specialix_board *)data)->irq,
                               (void*)data, NULL);
         }
         missed_irq_timer.expires = jiffies + sx_poll;
@@ -495,7 +489,7 @@ static int sx_probe(struct specialix_board *bp)
 
         func_enter();
 
-        if (sx_check_io_range(bp)) {
+        if (sx_request_io_range(bp)) {
                 func_exit();
                 return 1;
         }
@@ -509,15 +503,16 @@ static int sx_probe(struct specialix_board *bp)
         short_pause ();
         val2 = sx_in_off(bp, CD186x_PPRL);
 
-        
+
         if ((val1 != 0x5a) || (val2 != 0xa5)) {
                 printk(KERN_INFO "sx%d: specialix IO8+ Board at 0x%03x not found.\n",
                        board_No(bp), bp->base);
+                sx_release_io_range(bp);
                 func_exit();
                 return 1;
         }
 
-        /* Check the DSR lines that Specialix uses as board 
+        /* Check the DSR lines that Specialix uses as board
            identification */
         val1 = read_cross_byte (bp, CD186x_MSVR, MSVR_DSR);
         val2 = read_cross_byte (bp, CD186x_MSVR, MSVR_RTS);
@@ -532,6 +527,7 @@ static int sx_probe(struct specialix_board *bp)
         if (val1 != val2) {
                 printk(KERN_INFO "sx%d: specialix IO8+ ID %02x at 0x%03x not found (%02x).\n",
                        board_No(bp), val2, bp->base, val1);
+                sx_release_io_range(bp);
                 func_exit();
                 return 1;
         }
@@ -546,7 +542,7 @@ static int sx_probe(struct specialix_board *bp)
                 sx_wait_CCR(bp);
                 sx_out(bp, CD186x_CCR, CCR_TXEN);        /* Enable transmitter     */
                 sx_out(bp, CD186x_IER, IER_TXRDY);       /* Enable tx empty intr   */
-                sx_long_delay(HZ/20);                   
+                sx_long_delay(HZ/20);
                 irqs = probe_irq_off(irqs);
 
                 dprintk (SX_DEBUG_INIT, "SRSR = %02x, ", sx_in(bp, CD186x_SRSR));
@@ -561,14 +557,15 @@ static int sx_probe(struct specialix_board *bp)
                 }
 
                 dprintk (SX_DEBUG_INIT "val1 = %02x, val2 = %02x, val3 = %02x.\n",
-                        val1, val2, val3); 
-        
+                        val1, val2, val3);
+
         }
-        
+
 #if 0
         if (irqs <= 0) {
                 printk(KERN_ERR "sx%d: Can't find IRQ for specialix IO8+ board at 0x%03x.\n",
                        board_No(bp), bp->base);
+                sx_release_io_range(bp);
                 func_exit();
                 return 1;
         }
@@ -579,19 +576,20 @@ static int sx_probe(struct specialix_board *bp)
 #endif
         /* Reset CD186x again  */
         if (!sx_init_CD186x(bp)) {
+                sx_release_io_range(bp);
                 func_exit();
-                return -EIO;
+                return 1;
         }
 
         sx_request_io_range(bp);
         bp->flags |= SX_BOARD_PRESENT;
-        
+
         /* Chip           revcode   pkgtype
                           GFRCR     SRCR bit 7
            CD180 rev B    0x81      0
            CD180 rev C    0x82      0
            CD1864 rev A   0x82      1
-           CD1865 rev A   0x83      1  -- Do not use!!! Does not work. 
+           CD1865 rev A   0x83      1  -- Do not use!!! Does not work.
            CD1865 rev B   0x84      1
          -- Thanks to Gwen Wang, Cirrus Logic.
          */
@@ -623,8 +621,8 @@ static int sx_probe(struct specialix_board *bp)
         return 0;
 }
 
-/* 
- * 
+/*
+ *
  *  Interrupt processing routines.
  * */
 
@@ -657,7 +655,7 @@ static inline struct specialix_port * sx_get_port(struct specialix_board * bp,
                         return port;
                 }
         }
-        printk(KERN_INFO "sx%d: %s interrupt from invalid port %d\n", 
+        printk(KERN_INFO "sx%d: %s interrupt from invalid port %d\n",
                board_No(bp), what, channel);
         return NULL;
 }
@@ -681,7 +679,7 @@ static inline void sx_receive_exc(struct specialix_board * bp)
         tty = port->tty;
         dprintk (SX_DEBUG_RX, "port: %p count: %d BUFF_SIZE: %d\n",
                  port,  tty->flip.count, TTY_FLIPBUF_SIZE);
-        
+
         status = sx_in(bp, CD186x_RCSR);
 
         dprintk (SX_DEBUG_RX, "status: 0x%x\n", status);
@@ -707,30 +705,30 @@ static inline void sx_receive_exc(struct specialix_board * bp)
                 return;
         }
         if (status & RCSR_TOUT) {
-                printk(KERN_INFO "sx%d: port %d: Receiver timeout. Hardware problems ?\n", 
+                printk(KERN_INFO "sx%d: port %d: Receiver timeout. Hardware problems ?\n",
                        board_No(bp), port_No(port));
                 func_exit();
                 return;
-                
+
         } else if (status & RCSR_BREAK) {
                 dprintk(SX_DEBUG_RX, "sx%d: port %d: Handling break...\n",
                        board_No(bp), port_No(port));
                 *tty->flip.flag_buf_ptr++ = TTY_BREAK;
                 if (port->flags & ASYNC_SAK)
                         do_SAK(tty);
-                
-        } else if (status & RCSR_PE) 
+
+        } else if (status & RCSR_PE)
                 *tty->flip.flag_buf_ptr++ = TTY_PARITY;
-        
-        else if (status & RCSR_FE) 
+
+        else if (status & RCSR_FE)
                 *tty->flip.flag_buf_ptr++ = TTY_FRAME;
-        
+
         else if (status & RCSR_OE)
                 *tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
-        
+
         else
                 *tty->flip.flag_buf_ptr++ = 0;
-        
+
         *tty->flip.char_buf_ptr++ = ch;
         tty->flip.count++;
         schedule_delayed_work(&tty->flip.work, 1);
@@ -746,18 +744,18 @@ static inline void sx_receive(struct specialix_board * bp)
         unsigned char count;
 
         func_enter();
-        
+
         if (!(port = sx_get_port(bp, "Receive"))) {
                 dprintk (SX_DEBUG_RX, "Hmm, couldn't find port.\n");
                 func_exit();
                 return;
         }
         tty = port->tty;
-        
+
         count = sx_in(bp, CD186x_RDCR);
         dprintk (SX_DEBUG_RX, "port: %p: count: %d\n", port, count);
         port->hits[count > 8 ? 9 : count]++;
-        
+
         while (count--) {
                 if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
                         printk(KERN_INFO "sx%d: port %d: Working around flip buffer overflow.\n",
@@ -787,7 +785,7 @@ static inline void sx_transmit(struct specialix_board * bp)
         }
         dprintk (SX_DEBUG_TX, "port: %p\n", port);
         tty = port->tty;
-        
+
         if (port->IER & IER_TXEMPTY) {
                 /* FIFO drained */
                 sx_out(bp, CD186x_CAR, port_No(port));
@@ -796,7 +794,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 func_exit();
                 return;
         }
-        
+
         if ((port->xmit_cnt <= 0 && !port->break_length)
             || tty->stopped || tty->hw_stopped) {
                 sx_out(bp, CD186x_CAR, port_No(port));
@@ -805,7 +803,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 func_exit();
                 return;
         }
-        
+
         if (port->break_length) {
                 if (port->break_length > 0) {
                         if (port->COR2 & COR2_ETC) {
@@ -831,7 +829,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 func_exit();
                 return;
         }
-        
+
         count = CD186x_NFIFO;
         do {
                 sx_out(bp, CD186x_TDR, port->xmit_buf[port->xmit_tail++]);
@@ -839,7 +837,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 if (--port->xmit_cnt <= 0)
                         break;
         } while (--count > 0);
-        
+
         if (port->xmit_cnt <= 0) {
                 sx_out(bp, CD186x_CAR, port_No(port));
                 port->IER &= ~IER_TXRDY;
@@ -862,9 +860,9 @@ static inline void sx_check_modem(struct specialix_board * bp)
         dprintk (SX_DEBUG_SIGNALS, "Modem intr. ");
         if (!(port = sx_get_port(bp, "Modem")))
                 return;
-        
+
         tty = port->tty;
-        
+
         mcr = sx_in(bp, CD186x_MCR);
         printk ("mcr = %02x.\n", mcr);
 
@@ -879,7 +877,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
                         schedule_work(&port->tqueue_hangup);
                 }
         }
-        
+
 #ifdef SPECIALIX_BRAIN_DAMAGED_CTS
         if (mcr & MCR_CTSCHG) {
                 if (sx_in(bp, CD186x_MSVR) & MSVR_CTS) {
@@ -906,7 +904,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
                 sx_out(bp, CD186x_IER, port->IER);
         }
 #endif /* SPECIALIX_BRAIN_DAMAGED_CTS */
-        
+
         /* Clear change bits */
         sx_out(bp, CD186x_MCR, 0);
 }
@@ -940,7 +938,7 @@ static irqreturn_t sx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
         while ((++loop < 16) && (status = (sx_in(bp, CD186x_SRSR) &
                                            (SRSR_RREQint |
                                             SRSR_TREQint |
-                                            SRSR_MREQint)))) {  
+                                            SRSR_MREQint)))) {
                 if (status & SRSR_RREQint) {
                         ack = sx_in(bp, CD186x_RRAR);
 
@@ -951,7 +949,7 @@ static irqreturn_t sx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                         else
                                 printk(KERN_ERR "sx%d: status: 0x%x Bad receive ack 0x%02x.\n",
                                        board_No(bp), status, ack);
-                
+
                 } else if (status & SRSR_TREQint) {
                         ack = sx_in(bp, CD186x_TRAR);
 
@@ -963,13 +961,13 @@ static irqreturn_t sx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                 } else if (status & SRSR_MREQint) {
                         ack = sx_in(bp, CD186x_MRAR);
 
-                        if (ack == (SX_ID | GIVR_IT_MODEM)) 
+                        if (ack == (SX_ID | GIVR_IT_MODEM))
                                 sx_check_modem(bp);
                         else
                                 printk(KERN_ERR "sx%d: status: 0x%x Bad modem ack 0x%02x.\n",
                                        board_No(bp), status, ack);
-                
-                } 
+
+                }
 
                 sx_out(bp, CD186x_EOIR, 0);   /* Mark end of interrupt */
         }
@@ -1026,7 +1024,7 @@ static inline int sx_setup_board(struct specialix_board * bp)
 {
         int error;
 
-        if (bp->flags & SX_BOARD_ACTIVE) 
+        if (bp->flags & SX_BOARD_ACTIVE)
                 return 0;
 
         if (bp->flags & SX_BOARD_IS_PCI)
@@ -1034,7 +1032,7 @@ static inline int sx_setup_board(struct specialix_board * bp)
         else
                 error = request_irq(bp->irq, sx_interrupt, SA_INTERRUPT, "specialix IO8+", bp);
 
-        if (error) 
+        if (error)
                 return error;
 
         turn_ints_on (bp);
@@ -1055,7 +1053,7 @@ static inline void sx_shutdown_board(struct specialix_board *bp)
         }
 
         bp->flags &= ~SX_BOARD_ACTIVE;
-        
+
         dprintk (SX_DEBUG_IRQ, "Freeing IRQ%d for board %d.\n",
                  bp->irq, board_No (bp));
         free_irq(bp->irq, bp);
@@ -1068,7 +1066,7 @@ static inline void sx_shutdown_board(struct specialix_board *bp)
 
 
 /*
- * Setting up port characteristics. 
+ * Setting up port characteristics.
  * Must be called with disabled interrupts
  */
 static void sx_change_speed(struct specialix_board *bp, struct specialix_port *port)
@@ -1103,10 +1101,10 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
         spin_unlock_irqrestore(&bp->lock, flags);
         dprintk (SX_DEBUG_TERMIOS, "sx: got MSVR=%02x.\n", port->MSVR);
         baud = C_BAUD(tty);
-        
+
         if (baud & CBAUDEX) {
                 baud &= ~CBAUDEX;
-                if (baud < 1 || baud > 2) 
+                if (baud < 1 || baud > 2)
                         port->tty->termios->c_cflag &= ~CBAUDEX;
                 else
                         baud += 15;
@@ -1117,8 +1115,8 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
                         baud += 2;
         }
-        
-        
+
+
         if (!baud_table[baud]) {
                 /* Drop DTR & exit */
                 dprintk (SX_DEBUG_TERMIOS, "Dropping DTR...  Hmm....\n");
@@ -1127,7 +1125,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                         spin_lock_irqsave(&bp->lock, flags);
                         sx_out(bp, CD186x_MSVR, port->MSVR );
                         spin_unlock_irqrestore(&bp->lock, flags);
-                } 
+                }
                 else
                         dprintk (SX_DEBUG_TERMIOS, "Can't drop DTR: no DTR.\n");
                 return;
@@ -1137,9 +1135,9 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                         port ->MSVR |= MSVR_DTR;
                 }
         }
-        
+
         /*
-         * Now we must calculate some speed depended things 
+         * Now we must calculate some speed depended things
          */
 
         /* Set baud rate for port */
@@ -1152,7 +1150,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 tmp = (((SX_OSCFREQ + baud_table[baud]/2) / baud_table[baud] +
                          CD186x_TPC/2) / CD186x_TPC);
 
-        if ((tmp < 0x10) && time_before(again, jiffies)) { 
+        if ((tmp < 0x10) && time_before(again, jiffies)) {
                 again = jiffies + HZ * 60;
                 /* Page 48 of version 2.0 of the CL-CD1865 databook */
                 if (tmp >= 12) {
@@ -1164,27 +1162,27 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                         printk (KERN_INFO "sx%d: Baud rate divisor is %ld. \n"
                                 "Warning: overstressing Cirrus chip. "
                                 "This might not work.\n"
-                                "Read specialix.txt for more info.\n", 
+                                "Read specialix.txt for more info.\n",
                                 port_No (port), tmp);
                 }
         }
         spin_lock_irqsave(&bp->lock, flags);
-        sx_out(bp, CD186x_RBPRH, (tmp >> 8) & 0xff); 
-        sx_out(bp, CD186x_TBPRH, (tmp >> 8) & 0xff); 
-        sx_out(bp, CD186x_RBPRL, tmp & 0xff); 
+        sx_out(bp, CD186x_RBPRH, (tmp >> 8) & 0xff);
+        sx_out(bp, CD186x_TBPRH, (tmp >> 8) & 0xff);
+        sx_out(bp, CD186x_RBPRL, tmp & 0xff);
         sx_out(bp, CD186x_TBPRL, tmp & 0xff);
         spin_unlock_irqrestore(&bp->lock, flags);
         if (port->custom_divisor) {
                 baud = (SX_OSCFREQ + port->custom_divisor/2) / port->custom_divisor;
                 baud = ( baud + 5 ) / 10;
-        } else 
+        } else
                 baud = (baud_table[baud] + 5) / 10;   /* Estimated CPS */
 
         /* Two timer ticks seems enough to wakeup something like SLIP driver */
-        tmp = ((baud + HZ/2) / HZ) * 2 - CD186x_NFIFO;          
+        tmp = ((baud + HZ/2) / HZ) * 2 - CD186x_NFIFO;
         port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
                                               SERIAL_XMIT_SIZE - 1 : tmp);
-        
+
         /* Receiver timeout will be transmission time for 1.5 chars */
         tmp = (SPECIALIX_TPS + SPECIALIX_TPS/2 + baud/2) / baud;
         tmp = (tmp > 0xff) ? 0xff : tmp;
@@ -1205,29 +1203,29 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 cor1 |= COR1_8BITS;
                 break;
         }
-        
-        if (C_CSTOPB(tty)) 
+
+        if (C_CSTOPB(tty))
                 cor1 |= COR1_2SB;
-        
+
         cor1 |= COR1_IGNORE;
         if (C_PARENB(tty)) {
                 cor1 |= COR1_NORMPAR;
-                if (C_PARODD(tty)) 
+                if (C_PARODD(tty))
                         cor1 |= COR1_ODDP;
-                if (I_INPCK(tty)) 
+                if (I_INPCK(tty))
                         cor1 &= ~COR1_IGNORE;
         }
         /* Set marking of some errors */
         port->mark_mask = RCSR_OE | RCSR_TOUT;
-        if (I_INPCK(tty)) 
+        if (I_INPCK(tty))
                 port->mark_mask |= RCSR_FE | RCSR_PE;
-        if (I_BRKINT(tty) || I_PARMRK(tty)) 
+        if (I_BRKINT(tty) || I_PARMRK(tty))
                 port->mark_mask |= RCSR_BREAK;
-        if (I_IGNPAR(tty)) 
+        if (I_IGNPAR(tty))
                 port->mark_mask &= ~(RCSR_FE | RCSR_PE);
         if (I_IGNBRK(tty)) {
                 port->mark_mask &= ~RCSR_BREAK;
-                if (I_IGNPAR(tty)) 
+                if (I_IGNPAR(tty))
                         /* Real raw mode. Ignore all */
                         port->mark_mask &= ~RCSR_OE;
         }
@@ -1241,7 +1239,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 tty->hw_stopped = !(sx_in(bp, CD186x_MSVR) & (MSVR_CTS|MSVR_DSR));
                 spin_unlock_irqrestore(&bp->lock, flags);
 #else
-                port->COR2 |= COR2_CTSAE; 
+                port->COR2 |= COR2_CTSAE;
 #endif
         }
         /* Enable Software Flow Control. FIXME: I'm not sure about this */
@@ -1264,11 +1262,11 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 mcor1 |= MCOR1_CDZD;
                 mcor2 |= MCOR2_CDOD;
         }
-        
-        if (C_CREAD(tty)) 
+
+        if (C_CREAD(tty))
                 /* Enable receiver */
                 port->IER |= IER_RXD;
-        
+
         /* Set input FIFO size (1-8 bytes) */
         cor3 |= sx_rxfifo;
         /* Setting up CD186x channel registers */
@@ -1311,11 +1309,11 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
                 func_exit();
                 return 0;
         }
-        
+
         if (!port->xmit_buf) {
                 /* We may sleep in get_zeroed_page() */
                 unsigned long tmp;
-                
+
                 if (!(tmp = get_zeroed_page(GFP_KERNEL))) {
                         func_exit();
                         return -ENOMEM;
@@ -1328,10 +1326,10 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
                 }
                 port->xmit_buf = (unsigned char *) tmp;
         }
-                
+
         spin_lock_irqsave(&port->lock, flags);
 
-        if (port->tty) 
+        if (port->tty)
                 clear_bit(TTY_IO_ERROR, &port->tty->flags);
 
         port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
@@ -1340,7 +1338,7 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
 
         spin_unlock_irqrestore(&port->lock, flags);
 
-                
+
         func_exit();
         return 0;
 }
@@ -1352,14 +1350,14 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
         struct tty_struct *tty;
         int i;
         unsigned long flags;
-        
+
         func_enter();
 
         if (!(port->flags & ASYNC_INITIALIZED)) {
                 func_exit();
                 return;
         }
-        
+
         if (sx_debug & SX_DEBUG_FIFO) {
                 dprintk(SX_DEBUG_FIFO, "sx%d: port %d: %ld overruns, FIFO hits [ ",
                         board_No(bp), port_No(port), port->overrun);
@@ -1394,13 +1392,13 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
         if (tty)
                 set_bit(TTY_IO_ERROR, &tty->flags);
         port->flags &= ~ASYNC_INITIALIZED;
-        
-        if (!bp->count) 
+
+        if (!bp->count)
                 sx_shutdown_board(bp);
         func_exit();
 }
 
-        
+
 static int block_til_ready(struct tty_struct *tty, struct file * filp,
                            struct specialix_port *port)
 {
@@ -1427,7 +1425,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
                         return -ERESTARTSYS;
                 }
         }
-        
+
         /*
          * If non-blocking mode is set, or the port is not enabled,
          * then make the check up front and then exit.
@@ -1477,7 +1475,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
                         if (port->flags & ASYNC_HUP_NOTIFY)
                                 retval = -EAGAIN;
                         else
-                                retval = -ERESTARTSYS;  
+                                retval = -ERESTARTSYS;
                         break;
                 }
                 if (!(port->flags & ASYNC_CLOSING) &&
@@ -1506,7 +1504,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
         port->flags |= ASYNC_NORMAL_ACTIVE;
         func_exit();
         return 0;
-}       
+}
 
 
 static int sx_open(struct tty_struct * tty, struct file * filp)
@@ -1526,7 +1524,7 @@ static int sx_open(struct tty_struct * tty, struct file * filp)
                 func_exit();
                 return -ENODEV;
         }
-        
+
         bp = &sx_board[board];
         port = sx_port + board * SX_NPORT + SX_PORT(tty->index);
         port->overrun = 0;
@@ -1557,7 +1555,7 @@ static int sx_open(struct tty_struct * tty, struct file * filp)
                 func_enter();
                 return error;
         }
-        
+
         if ((error = block_til_ready(tty, filp, port))) {
                 func_enter();
                 return error;
@@ -1574,7 +1572,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
         struct specialix_board *bp;
         unsigned long flags;
         unsigned long timeout;
-        
+
         func_enter();
         if (!port || sx_paranoia_check(port, tty->name, "close")) {
                 func_exit();
@@ -1587,7 +1585,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
         if ((tty->count == 1) && (port->count != 1)) {
                 printk(KERN_ERR "sx%d: sx_close: bad port count;"
@@ -1607,7 +1605,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
         }
         port->flags |= ASYNC_CLOSING;
         /*
-         * Now we wait for the transmit buffer to clear; and we notify 
+         * Now we wait for the transmit buffer to clear; and we notify
          * the line discipline to only process XON/XOFF characters.
          */
         tty->closing = 1;
@@ -1681,7 +1679,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 }
 
 
-static int sx_write(struct tty_struct * tty, 
+static int sx_write(struct tty_struct * tty,
                     const unsigned char *buf, int count)
 {
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
@@ -1694,7 +1692,7 @@ static int sx_write(struct tty_struct * tty,
                 func_exit();
                 return 0;
         }
-        
+
         bp = port_Board(port);
 
         if (!tty || !port->xmit_buf || !tmp_buf) {
@@ -1824,7 +1822,7 @@ static int sx_chars_in_buffer(struct tty_struct *tty)
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
 
         func_enter();
-        
+
         if (sx_paranoia_check(port, tty->name, "sx_chars_in_buffer")) {
                 func_exit();
                 return 0;
@@ -1881,13 +1879,13 @@ static int sx_tiocmget(struct tty_struct *tty, struct file *file)
                 port_No(port), status, sx_in (bp, CD186x_CAR));
         dprintk (SX_DEBUG_INIT, "sx_port = %p, port = %p\n", sx_port, port);
         if (SX_CRTSCTS(port->tty)) {
-                result  = /*   (status & MSVR_RTS) ? */ TIOCM_DTR /* : 0) */ 
+                result  = /*   (status & MSVR_RTS) ? */ TIOCM_DTR /* : 0) */
                           |   ((status & MSVR_DTR) ? TIOCM_RTS : 0)
                           |   ((status & MSVR_CD)  ? TIOCM_CAR : 0)
                           |/* ((status & MSVR_DSR) ? */ TIOCM_DSR /* : 0) */
                           |   ((status & MSVR_CTS) ? TIOCM_CTS : 0);
         } else {
-                result  = /*   (status & MSVR_RTS) ? */ TIOCM_RTS /* : 0) */ 
+                result  = /*   (status & MSVR_RTS) ? */ TIOCM_RTS /* : 0) */
                           |   ((status & MSVR_DTR) ? TIOCM_DTR : 0)
                           |   ((status & MSVR_CD)  ? TIOCM_CAR : 0)
                           |/* ((status & MSVR_DSR) ? */ TIOCM_DSR /* : 0) */
@@ -1955,7 +1953,7 @@ static inline void sx_send_break(struct specialix_port * port, unsigned long len
 {
         struct specialix_board *bp = port_Board(port);
         unsigned long flags;
-        
+
         func_enter();
 
         spin_lock_irqsave (&port->lock, flags);
@@ -1996,8 +1994,8 @@ static inline int sx_set_serial_info(struct specialix_port * port,
                 func_enter();
                 return -EFAULT;
         }
-        
-#if 0   
+
+#if 0
         if ((tmp.irq != bp->irq) ||
             (tmp.port != bp->base) ||
             (tmp.type != PORT_CIRRUS) ||
@@ -2008,12 +2006,12 @@ static inline int sx_set_serial_info(struct specialix_port * port,
                 func_exit();
                 return -EINVAL;
         }
-#endif  
+#endif
 
         change_speed = ((port->flags & ASYNC_SPD_MASK) !=
                         (tmp.flags & ASYNC_SPD_MASK));
         change_speed |= (tmp.custom_divisor != port->custom_divisor);
-        
+
         if (!capable(CAP_SYS_ADMIN)) {
                 if ((tmp.close_delay != port->close_delay) ||
                     (tmp.closing_wait != port->closing_wait) ||
@@ -2045,7 +2043,7 @@ static inline int sx_get_serial_info(struct specialix_port * port,
 {
         struct serial_struct tmp;
         struct specialix_board *bp = port_Board(port);
-        
+
         func_enter();
 
         /*
@@ -2074,7 +2072,7 @@ static inline int sx_get_serial_info(struct specialix_port * port,
 }
 
 
-static int sx_ioctl(struct tty_struct * tty, struct file * filp, 
+static int sx_ioctl(struct tty_struct * tty, struct file * filp,
                     unsigned int cmd, unsigned long arg)
 {
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
@@ -2087,7 +2085,7 @@ static int sx_ioctl(struct tty_struct * tty, struct file * filp,
                 func_exit();
                 return -ENODEV;
         }
-        
+
         switch (cmd) {
          case TCSBRK:   /* SVID version: non-zero arg --> no break */
                 retval = tty_check_change(tty);
@@ -2129,7 +2127,7 @@ static int sx_ioctl(struct tty_struct * tty, struct file * filp,
          case TIOCGSERIAL:
                  func_exit();
                 return sx_get_serial_info(port, argp);
-         case TIOCSSERIAL:      
+         case TIOCSSERIAL:
                  func_exit();
                 return sx_set_serial_info(port, argp);
          default:
@@ -2153,16 +2151,16 @@ static void sx_throttle(struct tty_struct * tty)
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         /* Use DTR instead of RTS ! */
-        if (SX_CRTSCTS (tty)) 
+        if (SX_CRTSCTS (tty))
                 port->MSVR &= ~MSVR_DTR;
         else {
                 /* Auch!!! I think the system shouldn't call this then. */
                 /* Or maybe we're supposed (allowed?) to do our side of hw
-                   handshake anyway, even when hardware handshake is off. 
+                   handshake anyway, even when hardware handshake is off.
                    When you see this in your logs, please report.... */
                 printk (KERN_ERR "sx%d: Need to throttle, but can't (hardware hs is off)\n",
                          port_No (port));
@@ -2193,14 +2191,14 @@ static void sx_unthrottle(struct tty_struct * tty)
         unsigned long flags;
 
         func_enter();
-                                
+
         if (sx_paranoia_check(port, tty->name, "sx_unthrottle")) {
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         spin_lock_irqsave(&port->lock, flags);
         /* XXXX Use DTR INSTEAD???? */
         if (SX_CRTSCTS(tty)) {
@@ -2234,14 +2232,14 @@ static void sx_stop(struct tty_struct * tty)
         unsigned long flags;
 
         func_enter();
-        
+
         if (sx_paranoia_check(port, tty->name, "sx_stop")) {
                 func_exit();
                 return;
         }
 
         bp = port_Board(port);
-        
+
         spin_lock_irqsave(&port->lock, flags);
         port->IER &= ~IER_TXRDY;
         spin_lock_irqsave(&bp->lock, flags);
@@ -2261,14 +2259,14 @@ static void sx_start(struct tty_struct * tty)
         unsigned long flags;
 
         func_enter();
-                                
+
         if (sx_paranoia_check(port, tty->name, "sx_start")) {
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         spin_lock_irqsave(&port->lock, flags);
         if (port->xmit_cnt && port->xmit_buf && !(port->IER & IER_TXRDY)) {
                 port->IER |= IER_TXRDY;
@@ -2290,13 +2288,13 @@ static void sx_start(struct tty_struct * tty)
  *
  *      serial interrupt routine -> (workqueue) ->
  *      do_sx_hangup() -> tty->hangup() -> sx_hangup()
- * 
+ *
  */
 static void do_sx_hangup(void *private_)
 {
         struct specialix_port   *port = (struct specialix_port *) private_;
         struct tty_struct       *tty;
-        
+
         func_enter();
 
         tty = port->tty;
@@ -2319,9 +2317,9 @@ static void sx_hangup(struct tty_struct * tty)
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         sx_shutdown_port(bp, port);
         spin_lock_irqsave(&port->lock, flags);
         port->event = 0;
@@ -2346,10 +2344,10 @@ static void sx_set_termios(struct tty_struct * tty, struct termios * old_termios
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
         unsigned long flags;
         struct specialix_board  * bp;
-                                
+
         if (sx_paranoia_check(port, tty->name, "sx_set_termios"))
                 return;
-        
+
         if (tty->termios->c_cflag == old_termios->c_cflag &&
             tty->termios->c_iflag == old_termios->c_iflag)
                 return;
@@ -2420,7 +2418,7 @@ static int sx_init_drivers(void)
                 func_exit();
                 return 1;
         }
-        
+
         if (!(tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL))) {
                 printk(KERN_ERR "sx: Couldn't get free page.\n");
                 put_tty_driver(specialix_driver);
@@ -2457,7 +2455,7 @@ static int sx_init_drivers(void)
                 init_waitqueue_head(&sx_port[i].close_wait);
                 spin_lock_init(&sx_port[i].lock);
         }
-        
+
         func_exit();
         return 0;
 }
@@ -2472,8 +2470,8 @@ static void sx_release_drivers(void)
         func_exit();
 }
 
-/* 
- * This routine must be called by kernel at boot time 
+/*
+ * This routine must be called by kernel at boot time
  */
 static int __init specialix_init(void)
 {
@@ -2489,7 +2487,7 @@ static int __init specialix_init(void)
 #else
         printk (KERN_INFO "sx: DTR/RTS pin is RTS when CRTSCTS is on.\n");
 #endif
-        
+
         for (i = 0; i < SX_NBOARD; i++)
                 sx_board[i].lock = SPIN_LOCK_UNLOCKED;
 
@@ -2498,7 +2496,7 @@ static int __init specialix_init(void)
                 return -EIO;
         }
 
-        for (i = 0; i < SX_NBOARD; i++) 
+        for (i = 0; i < SX_NBOARD; i++)
                 if (sx_board[i].base && !sx_probe(&sx_board[i]))
                         found++;
 
@@ -2512,8 +2510,8 @@ static int __init specialix_init(void)
                                 i++;
                                 continue;
                         }
-                        pdev = pci_find_device (PCI_VENDOR_ID_SPECIALIX, 
-                                                PCI_DEVICE_ID_SPECIALIX_IO8, 
+                        pdev = pci_find_device (PCI_VENDOR_ID_SPECIALIX,
+                                                PCI_DEVICE_ID_SPECIALIX_IO8,
                                                 pdev);
                         if (!pdev) break;
 
@@ -2557,10 +2555,10 @@ module_param(sx_poll, int, 0);
 /*
  * You can setup up to 4 boards.
  * by specifying "iobase=0xXXX,0xXXX ..." as insmod parameter.
- * You should specify the IRQs too in that case "irq=....,...". 
- * 
+ * You should specify the IRQs too in that case "irq=....,...".
+ *
  * More than 4 boards in one computer is not possible, as the card can
- * only use 4 different interrupts. 
+ * only use 4 different interrupts.
  *
  */
 static int __init specialix_init_module(void)
@@ -2583,16 +2581,16 @@ static int __init specialix_init_module(void)
 
         return specialix_init();
 }
-        
+
 static void __exit specialix_exit_module(void)
 {
         int i;
-        
+
         func_enter();
 
         sx_release_drivers();
         for (i = 0; i < SX_NBOARD; i++)
-                if (sx_board[i].flags & SX_BOARD_PRESENT) 
+                if (sx_board[i].flags & SX_BOARD_PRESENT)
                         sx_release_io_range(&sx_board[i]);
 #ifdef SPECIALIX_TIMER
         del_timer (&missed_irq_timer);