1 files changed, 24 insertions, 33 deletions

diff --git a/drivers/serial/icom.c b/drivers/serial/icom.c
index eb31125c6a3..144a7a352b2 100644
--- a/drivers/serial/icom.c
+++ b/drivers/serial/icom.c
@@ -729,19 +729,20 @@ static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port)
         unsigned short int status;
         struct uart_icount *icount;
         unsigned long offset;
+        unsigned char flag;
 
         trace(icom_port, "RCV_COMPLETE", 0);
         rcv_buff = icom_port->next_rcv;
 
         status = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].flags);
         while (status & SA_FL_RCV_DONE) {
+                int first = -1;
 
                 trace(icom_port, "FID_STATUS", status);
                 count = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].leLength);
 
+                count = tty_buffer_request_room(tty, count);
                 trace(icom_port, "RCV_COUNT", count);
-                if (count > (TTY_FLIPBUF_SIZE - tty->flip.count))
-                        count = TTY_FLIPBUF_SIZE - tty->flip.count;
 
                 trace(icom_port, "REAL_COUNT", count);
 
@@ -749,15 +750,10 @@ static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port)
                         cpu_to_le32(icom_port->statStg->rcv[rcv_buff].leBuffer) -
                         icom_port->recv_buf_pci;
 
-                memcpy(tty->flip.char_buf_ptr,(unsigned char *)
-                       ((unsigned long)icom_port->recv_buf + offset), count);
-
+                /* Block copy all but the last byte as this may have status */
                 if (count > 0) {
-                        tty->flip.count += count - 1;
-                        tty->flip.char_buf_ptr += count - 1;
-
-                        memset(tty->flip.flag_buf_ptr, 0, count);
-                        tty->flip.flag_buf_ptr += count - 1;
+                        first = icom_port->recv_buf[offset];
+                        tty_insert_flip_string(tty, icom_port->recv_buf + offset, count - 1);
                 }
 
                 icount = &icom_port->uart_port.icount;
@@ -765,12 +761,14 @@ static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port)
 
                 /* Break detect logic */
                 if ((status & SA_FLAGS_FRAME_ERROR)
-                    && (tty->flip.char_buf_ptr[0] == 0x00)) {
+                    && first == 0) {
                         status &= ~SA_FLAGS_FRAME_ERROR;
                         status |= SA_FLAGS_BREAK_DET;
                         trace(icom_port, "BREAK_DET", 0);
                 }
 
+                flag = TTY_NORMAL;
+
                 if (status &
                     (SA_FLAGS_BREAK_DET | SA_FLAGS_PARITY_ERROR |
                      SA_FLAGS_FRAME_ERROR | SA_FLAGS_OVERRUN)) {
@@ -797,33 +795,26 @@ static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port)
                         status &= icom_port->read_status_mask;
 
                         if (status & SA_FLAGS_BREAK_DET) {
-                                *tty->flip.flag_buf_ptr = TTY_BREAK;
+                                flag = TTY_BREAK;
                         } else if (status & SA_FLAGS_PARITY_ERROR) {
                                 trace(icom_port, "PARITY_ERROR", 0);
-                                *tty->flip.flag_buf_ptr = TTY_PARITY;
+                                flag = TTY_PARITY;
                         } else if (status & SA_FLAGS_FRAME_ERROR)
-                                *tty->flip.flag_buf_ptr = TTY_FRAME;
-
-                        if (status & SA_FLAGS_OVERRUN) {
-                                /*
-                                 * Overrun is special, since it's
-                                 * reported immediately, and doesn't
-                                 * affect the current character
-                                 */
-                                if (tty->flip.count < TTY_FLIPBUF_SIZE) {
-                                        tty->flip.count++;
-                                        tty->flip.flag_buf_ptr++;
-                                        tty->flip.char_buf_ptr++;
-                                        *tty->flip.flag_buf_ptr = TTY_OVERRUN;
-                                }
-                        }
+                                flag = TTY_FRAME;
+
                 }
 
-                tty->flip.flag_buf_ptr++;
-                tty->flip.char_buf_ptr++;
-                tty->flip.count++;
-                ignore_char:
-                        icom_port->statStg->rcv[rcv_buff].flags = 0;
+                tty_insert_flip_char(tty, *(icom_port->recv_buf + offset + count - 1), flag);
+
+                if (status & SA_FLAGS_OVERRUN)
+                        /*
+                         * Overrun is special, since it's
+                         * reported immediately, and doesn't
+                         * affect the current character
+                         */
+                        tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+ignore_char:
+                icom_port->statStg->rcv[rcv_buff].flags = 0;
                 icom_port->statStg->rcv[rcv_buff].leLength = 0;
                 icom_port->statStg->rcv[rcv_buff].WorkingLength =
                         (unsigned short int) cpu_to_le16(RCV_BUFF_SZ);