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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-05-22 14:23:37 (GMT) |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-05-22 14:23:37 (GMT) |
| commit | e3b29f05124b07303088795396ff858811d2acb8 (patch) | |
| tree | 00b483ca6b30228119be19a362bbb0044ce87be8 | |
| parent | 8369d5fa63260cc54464b4687aa6a0f78402d98e (diff) | |
| download | linux-e3b29f05124b07303088795396ff858811d2acb8.tar.xz | |
ide: fix OOPS during ide-cd error recovery
On Tuesday 19 May 2009 20:29:28 Martin Lottermoser wrote:
> hdc: cdrom_decode_status: error=0x40 <3>{ LastFailedSense=0x04 }
> ide: failed opcode was: unknown
> hdc: DMA disabled
> ------------[ cut here ]------------
> kernel BUG at drivers/ide/ide-io.c:872!
It is possible for ide-cd to ignore ide_error()'s return value under
some circumstances. Workaround it in ide_intr() and ide_timer_expiry()
by checking if there is a device/port reset pending currently.
Fixes bug #13345:
http://bugzilla.kernel.org/show_bug.cgi?id=13345
Reported-by: Martin Lottermoser <Martin.Lottermoser@t-online.de>
Reported-and-tested-by: Modestas Vainius <modestas@vainius.eu>
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| -rw-r--r-- | drivers/ide/ide-io.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 35dc38d..6415a2e 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -696,7 +696,7 @@ void ide_timer_expiry (unsigned long data) } spin_lock_irq(&hwif->lock); enable_irq(hwif->irq); - if (startstop == ide_stopped) { + if (startstop == ide_stopped && hwif->polling == 0) { ide_unlock_port(hwif); plug_device = 1; } @@ -868,7 +868,7 @@ irqreturn_t ide_intr (int irq, void *dev_id) * same irq as is currently being serviced here, and Linux * won't allow another of the same (on any CPU) until we return. */ - if (startstop == ide_stopped) { + if (startstop == ide_stopped && hwif->polling == 0) { BUG_ON(hwif->handler); ide_unlock_port(hwif); plug_device = 1; |