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Date: Sat, 5 Jul 2008 14:50:01 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] ide: ide_unregister() warm-plug bugfix
Fix ide_unregister() to work for ports with no devices attached to them.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
for 2.6.26
drivers/ide/ide.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
Index: b/drivers/ide/ide.c
===================================================================
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -315,13 +315,14 @@ void ide_unregister(ide_hwif_t *hwif)
BUG_ON(in_interrupt());
BUG_ON(irqs_disabled());
+
mutex_lock(&ide_cfg_mtx);
- spin_lock_irq(&ide_lock);
- if (!hwif->present)
- goto abort;
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
+ spin_lock_irq(&ide_lock);
+ if (hwif->present) {
+ __ide_port_unregister_devices(hwif);
+ hwif->present = 0;
+ }
spin_unlock_irq(&ide_lock);
ide_proc_unregister_port(hwif);
@@ -359,7 +360,6 @@ void ide_unregister(ide_hwif_t *hwif)
/* restore hwif data to pristine status */
ide_init_port_data(hwif, hwif->index);
-abort:
spin_unlock_irq(&ide_lock);
mutex_unlock(&ide_cfg_mtx);
}
--
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