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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-12-29 20:27:29 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-12-29 20:27:29 +0100
commit3e0e29f7373ec96a1bd972790649524af7353f42 (patch)
tree322c10f8c3c8bc9a67b3d79601df827c5901f6b0 /drivers/ide
parent0e63a588fc3d6a5e6bb66bacaeb11cd9093141f8 (diff)
ide: unify ide_intr()'s exit points
Just a preparation for future changes. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-io.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index cc35d6dbd41..35b62588280 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1363,14 +1363,13 @@ irqreturn_t ide_intr (int irq, void *dev_id)
ide_drive_t *drive;
ide_handler_t *handler;
ide_startstop_t startstop;
+ irqreturn_t irq_ret = IRQ_NONE;
spin_lock_irqsave(&ide_lock, flags);
hwif = hwgroup->hwif;
- if (!ide_ack_intr(hwif)) {
- spin_unlock_irqrestore(&ide_lock, flags);
- return IRQ_NONE;
- }
+ if (!ide_ack_intr(hwif))
+ goto out;
if ((handler = hwgroup->handler) == NULL || hwgroup->polling) {
/*
@@ -1406,9 +1405,9 @@ irqreturn_t ide_intr (int irq, void *dev_id)
(void)hwif->tp_ops->read_status(hwif);
#endif /* CONFIG_BLK_DEV_IDEPCI */
}
- spin_unlock_irqrestore(&ide_lock, flags);
- return IRQ_NONE;
+ goto out;
}
+
drive = hwgroup->drive;
if (!drive) {
/*
@@ -1417,10 +1416,10 @@ irqreturn_t ide_intr (int irq, void *dev_id)
*
* [Note - this can occur if the drive is hot unplugged]
*/
- spin_unlock_irqrestore(&ide_lock, flags);
- return IRQ_HANDLED;
+ goto out_handled;
}
- if (!drive_is_ready(drive)) {
+
+ if (!drive_is_ready(drive))
/*
* This happens regularly when we share a PCI IRQ with
* another device. Unfortunately, it can also happen
@@ -1428,9 +1427,8 @@ irqreturn_t ide_intr (int irq, void *dev_id)
* their status register is up to date. Hopefully we have
* enough advance overhead that the latter isn't a problem.
*/
- spin_unlock_irqrestore(&ide_lock, flags);
- return IRQ_NONE;
- }
+ goto out;
+
if (!hwgroup->busy) {
hwgroup->busy = 1; /* paranoia */
printk(KERN_ERR "%s: ide_intr: hwgroup->busy was 0 ??\n", drive->name);
@@ -1467,8 +1465,11 @@ irqreturn_t ide_intr (int irq, void *dev_id)
"on exit\n", drive->name);
}
}
+out_handled:
+ irq_ret = IRQ_HANDLED;
+out:
spin_unlock_irqrestore(&ide_lock, flags);
- return IRQ_HANDLED;
+ return irq_ret;
}
/**