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-rw-r--r--drivers/ide/ide-io.c6
-rw-r--r--drivers/ide/ide-iops.c2
-rw-r--r--include/linux/ide.h2
3 files changed, 9 insertions, 1 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 0e0280076fc..8670112f1d3 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1226,6 +1226,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
#endif
/* so that ide_timer_expiry knows what to do */
hwgroup->sleeping = 1;
+ hwgroup->req_gen_timer = hwgroup->req_gen;
mod_timer(&hwgroup->timer, sleep);
/* we purposely leave hwgroup->busy==1
* while sleeping */
@@ -1411,7 +1412,8 @@ void ide_timer_expiry (unsigned long data)
spin_lock_irqsave(&ide_lock, flags);
- if ((handler = hwgroup->handler) == NULL) {
+ if (((handler = hwgroup->handler) == NULL) ||
+ (hwgroup->req_gen != hwgroup->req_gen_timer)) {
/*
* Either a marginal timeout occurred
* (got the interrupt just as timer expired),
@@ -1439,6 +1441,7 @@ void ide_timer_expiry (unsigned long data)
if ((wait = expiry(drive)) > 0) {
/* reset timer */
hwgroup->timer.expires = jiffies + wait;
+ hwgroup->req_gen_timer = hwgroup->req_gen;
add_timer(&hwgroup->timer);
spin_unlock_irqrestore(&ide_lock, flags);
return;
@@ -1653,6 +1656,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
printk(KERN_ERR "%s: ide_intr: hwgroup->busy was 0 ??\n", drive->name);
}
hwgroup->handler = NULL;
+ hwgroup->req_gen++;
del_timer(&hwgroup->timer);
spin_unlock(&ide_lock);
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 1ee53a551c3..3caa176b315 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -889,6 +889,7 @@ static void __ide_set_handler (ide_drive_t *drive, ide_handler_t *handler,
hwgroup->handler = handler;
hwgroup->expiry = expiry;
hwgroup->timer.expires = jiffies + timeout;
+ hwgroup->req_gen_timer = hwgroup->req_gen;
add_timer(&hwgroup->timer);
}
@@ -929,6 +930,7 @@ void ide_execute_command(ide_drive_t *drive, task_ioreg_t cmd, ide_handler_t *ha
hwgroup->handler = handler;
hwgroup->expiry = expiry;
hwgroup->timer.expires = jiffies + timeout;
+ hwgroup->req_gen_timer = hwgroup->req_gen;
add_timer(&hwgroup->timer);
hwif->OUTBSYNC(drive, cmd, IDE_COMMAND_REG);
/* Drive takes 400nS to respond, we must avoid the IRQ being
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 58564a19986..d3bbc7188b6 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -861,6 +861,8 @@ typedef struct hwgroup_s {
int (*expiry)(ide_drive_t *);
/* ide_system_bus_speed */
int pio_clock;
+ int req_gen;
+ int req_gen_timer;
unsigned char cmd_buf[4];
} ide_hwgroup_t;