17 files changed, 95 insertions, 73 deletions

diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 8cdbfeca5903..adef447f23ea 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -112,7 +112,7 @@ config SERIO_GSCPS2
 
 config HP_SDC
         tristate "HP System Device Controller i8042 Support"
-        depends on GSC && SERIO
+        depends on (GSC || HP300) && SERIO
         default y
         ---help---
           This option enables support for the "System Device
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 3df5eedf8f31..5a7b49c35539 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -37,14 +37,14 @@ struct amba_kmi_port {
         unsigned int            open;
 };
 
-static irqreturn_t amba_kmi_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t amba_kmi_int(int irq, void *dev_id)
 {
         struct amba_kmi_port *kmi = dev_id;
         unsigned int status = readb(KMIIR);
         int handled = IRQ_NONE;
 
         while (status & KMIIR_RXINTR) {
-                serio_interrupt(kmi->io, readb(KMIDATA), 0, regs);
+                serio_interrupt(kmi->io, readb(KMIDATA), 0);
                 status = readb(KMIIR);
                 handled = IRQ_HANDLED;
         }
diff --git a/drivers/input/serio/ct82c710.c b/drivers/input/serio/ct82c710.c
index bc6e87add093..0d35018c23a9 100644
--- a/drivers/input/serio/ct82c710.c
+++ b/drivers/input/serio/ct82c710.c
@@ -71,9 +71,9 @@ static struct resource ct82c710_iores;
  * is waiting in the 82C710.
  */
 
-static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id, struct pt_regs * regs)
+static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id)
 {
-        return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0, regs);
+        return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0);
 }
 
 /*
diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index cde036a92168..74f14e097789 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -82,7 +82,7 @@ MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
 #define GSC_ID_MOUSE            1
 
 
-static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs);
+static irqreturn_t gscps2_interrupt(int irq, void *dev);
 
 #define BUFFER_SIZE 0x0f
 
@@ -166,7 +166,7 @@ static inline int gscps2_writeb_output(struct gscps2port *ps2port, u8 data)
 
         /* make sure any received data is returned as fast as possible */
         /* this is important e.g. when we set the LEDs on the keyboard */
-        gscps2_interrupt(0, NULL, NULL);
+        gscps2_interrupt(0, NULL);
 
         return 1;
 }
@@ -226,7 +226,7 @@ static LIST_HEAD(ps2port_list);
  * later.
  */
 
-static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t gscps2_interrupt(int irq, void *dev)
 {
         struct gscps2port *ps2port;
 
@@ -267,7 +267,7 @@ static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs)
             rxflags =   ((status & GSC_STAT_TERR) ? SERIO_TIMEOUT : 0 ) |
                         ((status & GSC_STAT_PERR) ? SERIO_PARITY  : 0 );
 
-            serio_interrupt(ps2port->port, data, rxflags, regs);
+            serio_interrupt(ps2port->port, data, rxflags);
 
           } /* while() */
 
@@ -306,7 +306,7 @@ static int gscps2_open(struct serio *port)
         /* enable it */
         gscps2_enable(ps2port, ENABLE);
 
-        gscps2_interrupt(0, NULL, NULL);
+        gscps2_interrupt(0, NULL);
 
         return 0;
 }
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index bbbe15e21904..49e11e2c1d5d 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -162,10 +162,10 @@ static void hil_mlc_send_polls(hil_mlc *mlc) {
                 if (did != (p & HIL_PKT_ADDR_MASK) >> 8) {
                         if (drv == NULL || drv->interrupt == NULL) goto skip;
 
-                        drv->interrupt(serio, 0, 0, NULL);
-                        drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-                        drv->interrupt(serio, HIL_PKT_CMD >> 8,  0, NULL);
-                        drv->interrupt(serio, HIL_CMD_POL + cnt, 0, NULL);
+                        drv->interrupt(serio, 0, 0);
+                        drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+                        drv->interrupt(serio, HIL_PKT_CMD >> 8,  0);
+                        drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
                 skip:
                         did = (p & HIL_PKT_ADDR_MASK) >> 8;
                         serio = did ? mlc->serio[mlc->di_map[did-1]] : NULL;
@@ -174,10 +174,10 @@ static void hil_mlc_send_polls(hil_mlc *mlc) {
                 }
                 cnt++; i++;
                 if (drv == NULL || drv->interrupt == NULL) continue;
-                drv->interrupt(serio, (p >> 24), 0, NULL);
-                drv->interrupt(serio, (p >> 16) & 0xff, 0, NULL);
-                drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0, NULL);
-                drv->interrupt(serio, p & 0xff, 0, NULL);
+                drv->interrupt(serio, (p >> 24), 0);
+                drv->interrupt(serio, (p >> 16) & 0xff, 0);
+                drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
+                drv->interrupt(serio, p & 0xff, 0);
         }
 }
 
@@ -391,23 +391,23 @@ static int hilse_operate(hil_mlc *mlc, int repoll) {
 }
 
 #define FUNC(funct, funct_arg, zero_rc, neg_rc, pos_rc) \
-{ HILSE_FUNC,           { func: &funct }, funct_arg, zero_rc, neg_rc, pos_rc },
+{ HILSE_FUNC,           { .func = funct }, funct_arg, zero_rc, neg_rc, pos_rc },
 #define OUT(pack) \
-{ HILSE_OUT,            { packet: pack }, 0, HILSEN_NEXT, HILSEN_DOZE, 0 },
+{ HILSE_OUT,            { .packet = pack }, 0, HILSEN_NEXT, HILSEN_DOZE, 0 },
 #define CTS \
-{ HILSE_CTS,            { packet: 0    }, 0, HILSEN_NEXT | HILSEN_SCHED | HILSEN_BREAK, HILSEN_DOZE, 0 },
+{ HILSE_CTS,            { .packet = 0    }, 0, HILSEN_NEXT | HILSEN_SCHED | HILSEN_BREAK, HILSEN_DOZE, 0 },
 #define EXPECT(comp, to, got, got_wrong, timed_out) \
-{ HILSE_EXPECT,         { packet: comp }, to, got, got_wrong, timed_out },
+{ HILSE_EXPECT,         { .packet = comp }, to, got, got_wrong, timed_out },
 #define EXPECT_LAST(comp, to, got, got_wrong, timed_out) \
-{ HILSE_EXPECT_LAST,    { packet: comp }, to, got, got_wrong, timed_out },
+{ HILSE_EXPECT_LAST,    { .packet = comp }, to, got, got_wrong, timed_out },
 #define EXPECT_DISC(comp, to, got, got_wrong, timed_out) \
-{ HILSE_EXPECT_DISC,    { packet: comp }, to, got, got_wrong, timed_out },
+{ HILSE_EXPECT_DISC,    { .packet = comp }, to, got, got_wrong, timed_out },
 #define IN(to, got, got_error, timed_out) \
-{ HILSE_IN,             { packet: 0    }, to, got, got_error, timed_out },
+{ HILSE_IN,             { .packet = 0    }, to, got, got_error, timed_out },
 #define OUT_DISC(pack) \
-{ HILSE_OUT_DISC,       { packet: pack }, 0, 0, 0, 0 },
+{ HILSE_OUT_DISC,       { .packet = pack }, 0, 0, 0, 0 },
 #define OUT_LAST(pack) \
-{ HILSE_OUT_LAST,       { packet: pack }, 0, 0, 0, 0 },
+{ HILSE_OUT_LAST,       { .packet = pack }, 0, 0, 0, 0 },
 
 struct hilse_node hil_mlc_se[HILSEN_END] = {
 
@@ -780,16 +780,16 @@ static int hil_mlc_serio_write(struct serio *serio, unsigned char c) {
         while ((last != idx) && (*last == 0)) last--;
 
         while (idx != last) {
-                drv->interrupt(serio, 0, 0, NULL);
-                drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-                drv->interrupt(serio, 0, 0, NULL);
-                drv->interrupt(serio, *idx, 0, NULL);
+                drv->interrupt(serio, 0, 0);
+                drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+                drv->interrupt(serio, 0, 0);
+                drv->interrupt(serio, *idx, 0);
                 idx++;
         }
-        drv->interrupt(serio, 0, 0, NULL);
-        drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-        drv->interrupt(serio, HIL_PKT_CMD >> 8, 0, NULL);
-        drv->interrupt(serio, *idx, 0, NULL);
+        drv->interrupt(serio, 0, 0);
+        drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+        drv->interrupt(serio, HIL_PKT_CMD >> 8, 0);
+        drv->interrupt(serio, *idx, 0);
         
         mlc->serio_oidx[map->didx] = 0;
         mlc->serio_opacket[map->didx] = 0;
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index a10348bb25e9..9907ad3bea23 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -202,7 +202,7 @@ static void hp_sdc_take (int irq, void *dev_id, uint8_t status, uint8_t data) {
         }
 }
 
-static irqreturn_t hp_sdc_isr(int irq, void *dev_id, struct pt_regs * regs) {
+static irqreturn_t hp_sdc_isr(int irq, void *dev_id) {
         uint8_t status, data;
 
         status = hp_sdc_status_in8();
@@ -253,7 +253,7 @@ static irqreturn_t hp_sdc_isr(int irq, void *dev_id, struct pt_regs * regs) {
 }
 
 
-static irqreturn_t hp_sdc_nmisr(int irq, void *dev_id, struct pt_regs * regs) {
+static irqreturn_t hp_sdc_nmisr(int irq, void *dev_id) {
         int status;
         
         status = hp_sdc_status_in8();
@@ -310,7 +310,7 @@ static void hp_sdc_tasklet(unsigned long foo) {
                                  * in tasklet/bh context.
                                  */
                                 if (curr->act.irqhook) 
-                                        curr->act.irqhook(0, 0, 0, 0);
+                                        curr->act.irqhook(0, NULL, 0, 0);
                         }
                         curr->actidx = curr->idx;
                         curr->idx++;
@@ -525,7 +525,7 @@ actdone:
                 up(curr->act.semaphore);
         }
         else if (act & HP_SDC_ACT_CALLBACK) {
-                curr->act.irqhook(0,0,0,0);
+                curr->act.irqhook(0,NULL,0,0);
         }
         if (curr->idx >= curr->endidx) { /* This transaction is over. */
                 if (act & HP_SDC_ACT_DEALLOC) kfree(curr);
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 1bb0c76a9259..7e3141f37e32 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -106,9 +106,10 @@ static unsigned char i8042_ctr;
 static unsigned char i8042_mux_present;
 static unsigned char i8042_kbd_irq_registered;
 static unsigned char i8042_aux_irq_registered;
+static unsigned char i8042_suppress_kbd_ack;
 static struct platform_device *i8042_platform_device;
 
-static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t i8042_interrupt(int irq, void *dev_id);
 
 /*
  * The i8042_wait_read() and i8042_wait_write functions wait for the i8042 to
@@ -271,7 +272,7 @@ static int i8042_aux_write(struct serio *serio, unsigned char c)
  * characters later.
  */
 
-        i8042_interrupt(0, NULL, NULL);
+        i8042_interrupt(0, NULL);
         return retval;
 }
 
@@ -309,14 +310,14 @@ static void i8042_stop(struct serio *serio)
  * to the upper layers.
  */
 
-static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t i8042_interrupt(int irq, void *dev_id)
 {
         struct i8042_port *port;
         unsigned long flags;
         unsigned char str, data;
         unsigned int dfl;
         unsigned int port_no;
-        int ret;
+        int ret = 1;
 
         spin_lock_irqsave(&i8042_lock, flags);
         str = i8042_read_status();
@@ -378,10 +379,16 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
             dfl & SERIO_PARITY ? ", bad parity" : "",
             dfl & SERIO_TIMEOUT ? ", timeout" : "");
 
+        if (unlikely(i8042_suppress_kbd_ack))
+                if (port_no == I8042_KBD_PORT_NO &&
+                    (data == 0xfa || data == 0xfe)) {
+                        i8042_suppress_kbd_ack = 0;
+                        goto out;
+                }
+
         if (likely(port->exists))
-                serio_interrupt(port->serio, data, dfl, regs);
+                serio_interrupt(port->serio, data, dfl);
 
-        ret = 1;
  out:
         return IRQ_RETVAL(ret);
 }
@@ -519,7 +526,7 @@ static int __devinit i8042_check_mux(void)
 static struct completion i8042_aux_irq_delivered __devinitdata;
 static int i8042_irq_being_tested __devinitdata;
 
-static irqreturn_t __devinit i8042_aux_test_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t __devinit i8042_aux_test_irq(int irq, void *dev_id)
 {
         unsigned long flags;
         unsigned char str, data;
@@ -842,11 +849,13 @@ static long i8042_panic_blink(long count)
         led ^= 0x01 | 0x04;
         while (i8042_read_status() & I8042_STR_IBF)
                 DELAY;
+        i8042_suppress_kbd_ack = 1;
         i8042_write_data(0xed); /* set leds */
         DELAY;
         while (i8042_read_status() & I8042_STR_IBF)
                 DELAY;
         DELAY;
+        i8042_suppress_kbd_ack = 1;
         i8042_write_data(led);
         DELAY;
         last_blink = count;
@@ -905,7 +914,7 @@ static int i8042_resume(struct platform_device *dev)
         if (i8042_ports[I8042_KBD_PORT_NO].serio)
                 i8042_enable_kbd_port();
 
-        i8042_interrupt(0, NULL, NULL);
+        i8042_interrupt(0, NULL);
 
         return 0;
 }
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index dcb16b5cbec0..e5b1b60757bb 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -189,7 +189,7 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
                 return -1;
         }
 
-        mutex_lock_nested(&ps2dev->cmd_mutex, SINGLE_DEPTH_NESTING);
+        mutex_lock(&ps2dev->cmd_mutex);
 
         serio_pause_rx(ps2dev->serio);
         ps2dev->flags = command == PS2_CMD_GETID ? PS2_FLAG_WAITID : 0;
@@ -296,6 +296,7 @@ EXPORT_SYMBOL(ps2_schedule_command);
 void ps2_init(struct ps2dev *ps2dev, struct serio *serio)
 {
         mutex_init(&ps2dev->cmd_mutex);
+        lockdep_set_subclass(&ps2dev->cmd_mutex, serio->depth);
         init_waitqueue_head(&ps2dev->wait);
         ps2dev->serio = serio;
 }
diff --git a/drivers/input/serio/maceps2.c b/drivers/input/serio/maceps2.c
index f08a5d0cd5fa..558200e96d0f 100644
--- a/drivers/input/serio/maceps2.c
+++ b/drivers/input/serio/maceps2.c
@@ -72,8 +72,7 @@ static int maceps2_write(struct serio *dev, unsigned char val)
         return -1;
 }
 
-static irqreturn_t maceps2_interrupt(int irq, void *dev_id,
-                                     struct pt_regs *regs)
+static irqreturn_t maceps2_interrupt(int irq, void *dev_id)
 {
         struct serio *dev = dev_id;
         struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
@@ -81,7 +80,7 @@ static irqreturn_t maceps2_interrupt(int irq, void *dev_id,
 
         if (port->status & PS2_STATUS_RX_FULL) {
                 byte = port->rx;
-                serio_interrupt(dev, byte & 0xff, 0, regs);
+                serio_interrupt(dev, byte & 0xff, 0);
         }
 
         return IRQ_HANDLED;
diff --git a/drivers/input/serio/parkbd.c b/drivers/input/serio/parkbd.c
index a5c1fb3a4a51..688610e86a3e 100644
--- a/drivers/input/serio/parkbd.c
+++ b/drivers/input/serio/parkbd.c
@@ -102,7 +102,7 @@ static int parkbd_write(struct serio *port, unsigned char c)
         return 0;
 }
 
-static void parkbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static void parkbd_interrupt(int irq, void *dev_id)
 {
 
         if (parkbd_writing) {
@@ -134,7 +134,7 @@ static void parkbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                 parkbd_buffer |= (parkbd_readlines() >> 1) << parkbd_counter++;
 
                 if (parkbd_counter == parkbd_mode + 10)
-                        serio_interrupt(parkbd_port, (parkbd_buffer >> (2 - parkbd_mode)) & 0xff, 0, regs);
+                        serio_interrupt(parkbd_port, (parkbd_buffer >> (2 - parkbd_mode)) & 0xff, 0);
         }
 
         parkbd_last = jiffies;
diff --git a/drivers/input/serio/pcips2.c b/drivers/input/serio/pcips2.c
index fb727c665253..ea5e3c6ddb62 100644
--- a/drivers/input/serio/pcips2.c
+++ b/drivers/input/serio/pcips2.c
@@ -58,7 +58,7 @@ static int pcips2_write(struct serio *io, unsigned char val)
         return 0;
 }
 
-static irqreturn_t pcips2_interrupt(int irq, void *devid, struct pt_regs *regs)
+static irqreturn_t pcips2_interrupt(int irq, void *devid)
 {
         struct pcips2_data *ps2if = devid;
         unsigned char status, scancode;
@@ -80,7 +80,7 @@ static irqreturn_t pcips2_interrupt(int irq, void *devid, struct pt_regs *regs)
                 if (hweight8(scancode) & 1)
                         flag ^= SERIO_PARITY;
 
-                serio_interrupt(ps2if->io, scancode, flag, regs);
+                serio_interrupt(ps2if->io, scancode, flag);
         } while (1);
         return IRQ_RETVAL(handled);
 }
diff --git a/drivers/input/serio/q40kbd.c b/drivers/input/serio/q40kbd.c
index d3827c5fe119..cb89aff2e160 100644
--- a/drivers/input/serio/q40kbd.c
+++ b/drivers/input/serio/q40kbd.c
@@ -53,14 +53,14 @@ DEFINE_SPINLOCK(q40kbd_lock);
 static struct serio *q40kbd_port;
 static struct platform_device *q40kbd_device;
 
-static irqreturn_t q40kbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t q40kbd_interrupt(int irq, void *dev_id)
 {
         unsigned long flags;
 
         spin_lock_irqsave(&q40kbd_lock, flags);
 
         if (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))
-                serio_interrupt(q40kbd_port, master_inb(KEYCODE_REG), 0, regs);
+                serio_interrupt(q40kbd_port, master_inb(KEYCODE_REG), 0);
 
         master_outb(-1, KEYBOARD_UNLOCK_REG);
 
diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c
index 513d37fc1acf..49f84315cb32 100644
--- a/drivers/input/serio/rpckbd.c
+++ b/drivers/input/serio/rpckbd.c
@@ -56,7 +56,7 @@ static int rpckbd_write(struct serio *port, unsigned char val)
         return 0;
 }
 
-static irqreturn_t rpckbd_rx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpckbd_rx(int irq, void *dev_id)
 {
         struct serio *port = dev_id;
         unsigned int byte;
@@ -65,13 +65,13 @@ static irqreturn_t rpckbd_rx(int irq, void *dev_id, struct pt_regs *regs)
         while (iomd_readb(IOMD_KCTRL) & (1 << 5)) {
                 byte = iomd_readb(IOMD_KARTRX);
 
-                serio_interrupt(port, byte, 0, regs);
+                serio_interrupt(port, byte, 0);
                 handled = IRQ_HANDLED;
         }
         return handled;
 }
 
-static irqreturn_t rpckbd_tx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpckbd_tx(int irq, void *dev_id)
 {
         return IRQ_HANDLED;
 }
diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c
index ebd9976fc811..559508795af1 100644
--- a/drivers/input/serio/sa1111ps2.c
+++ b/drivers/input/serio/sa1111ps2.c
@@ -40,7 +40,7 @@ struct ps2if {
  * at the most one, but we loop for safety.  If there was a
  * framing error, we have to manually clear the status.
  */
-static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ps2_rxint(int irq, void *dev_id)
 {
         struct ps2if *ps2if = dev_id;
         unsigned int scancode, flag, status;
@@ -58,7 +58,7 @@ static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
                 if (hweight8(scancode) & 1)
                         flag ^= SERIO_PARITY;
 
-                serio_interrupt(ps2if->io, scancode, flag, regs);
+                serio_interrupt(ps2if->io, scancode, flag);
 
                 status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
         }
@@ -69,7 +69,7 @@ static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
 /*
  * Completion of ps2 write
  */
-static irqreturn_t ps2_txint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ps2_txint(int irq, void *dev_id)
 {
         struct ps2if *ps2if = dev_id;
         unsigned int status;
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 3e76ad71c9a0..211943f85cb6 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -118,6 +118,8 @@ static int serio_match_port(const struct serio_device_id *ids, struct serio *ser
 
 static void serio_bind_driver(struct serio *serio, struct serio_driver *drv)
 {
+        int error;
+
         down_write(&serio_bus.subsys.rwsem);
 
         if (serio_match_port(drv->id_table, serio)) {
@@ -126,9 +128,19 @@ static void serio_bind_driver(struct serio *serio, struct serio_driver *drv)
                         serio->dev.driver = NULL;
                         goto out;
                 }
-                device_bind_driver(&serio->dev);
+                error = device_bind_driver(&serio->dev);
+                if (error) {
+                        printk(KERN_WARNING
+                                "serio: device_bind_driver() failed "
+                                "for %s (%s) and %s, error: %d\n",
+                                serio->phys, serio->name,
+                                drv->description, error);
+                        serio_disconnect_driver(serio);
+                        serio->dev.driver = NULL;
+                        goto out;
+                }
         }
-out:
+ out:
         up_write(&serio_bus.subsys.rwsem);
 }
 
@@ -538,8 +550,12 @@ static void serio_init_port(struct serio *serio)
                  "serio%ld", (long)atomic_inc_return(&serio_no) - 1);
         serio->dev.bus = &serio_bus;
         serio->dev.release = serio_release_port;
-        if (serio->parent)
+        if (serio->parent) {
                 serio->dev.parent = &serio->parent->dev;
+                serio->depth = serio->parent->depth + 1;
+        } else
+                serio->depth = 0;
+        lockdep_set_subclass(&serio->lock, serio->depth);
 }
 
 /*
@@ -911,7 +927,7 @@ void serio_close(struct serio *serio)
 }
 
 irqreturn_t serio_interrupt(struct serio *serio,
-                unsigned char data, unsigned int dfl, struct pt_regs *regs)
+                unsigned char data, unsigned int dfl)
 {
         unsigned long flags;
         irqreturn_t ret = IRQ_NONE;
@@ -919,7 +935,7 @@ irqreturn_t serio_interrupt(struct serio *serio,
         spin_lock_irqsave(&serio->lock, flags);
 
         if (likely(serio->drv)) {
-                ret = serio->drv->interrupt(serio, data, dfl, regs);
+                ret = serio->drv->interrupt(serio, data, dfl);
         } else if (!dfl && serio->registered) {
                 serio_rescan(serio);
                 ret = IRQ_HANDLED;
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index 71a8eea816cb..ba2a2035d648 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -250,7 +250,7 @@ static struct file_operations serio_raw_fops = {
  *********************************************************************/
 
 static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
-                                        unsigned int dfl, struct pt_regs *regs)
+                                        unsigned int dfl)
 {
         struct serio_raw *serio_raw = serio_get_drvdata(serio);
         struct serio_raw_list *list;
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 54a680cc704d..e1a3a79ab3f9 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -117,9 +117,6 @@ static void serport_ldisc_close(struct tty_struct *tty)
  * serport_ldisc_receive() is called by the low level tty driver when characters
  * are ready for us. We forward the characters, one by one to the 'interrupt'
  * routine.
- *
- * FIXME: We should get pt_regs from the tty layer and forward them to
- *        serio_interrupt here.
  */
 
 static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
@@ -134,7 +131,7 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c
                 goto out;
 
         for (i = 0; i < count; i++)
-                serio_interrupt(serport->serio, cp[i], 0, NULL);
+                serio_interrupt(serport->serio, cp[i], 0);
 
 out:
         spin_unlock_irqrestore(&serport->lock, flags);