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| author |   Maciej W. Rozycki <macro@linux-mips.org> | 2007-12-10 15:49:31 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-10 19:43:55 -0800 |
| commit | 522939d45c293388e6a360210905f9230298df16 (patch) | |
| tree | 38c37c6688a5095ab49c8fd42425e2bf3fb61ae9 /include/scsi | |
| parent | Fix NULL dereference in umem.c (diff) | |
| download | linux-dev-522939d45c293388e6a360210905f9230298df16.tar.xz linux-dev-522939d45c293388e6a360210905f9230298df16.zip | |
esp_scsi: fix reset cleanup spinlock recursion
The esp_reset_cleanup() function is called with the host lock held and
invokes starget_for_each_device() which wants to take it too. Here is a
fix along the lines of shost_for_each_device()/__shost_for_each_device()
adding a __starget_for_each_device() counterpart which assumes the lock
has already been taken.
Eventually, I think the driver should get modified so that more work is
done as a softirq rather than in the interrupt context, but for now it
fixes a bug that causes the spinlock debugger to fire.
While at it, it fixes a small number of cosmetic problems with
starget_for_each_device() too.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 66e9058357e0..6c2d80b36aa1 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -242,6 +242,9 @@ extern struct scsi_device *__scsi_device_lookup_by_target(struct scsi_target *, uint); extern void starget_for_each_device(struct scsi_target *, void *, void (*fn)(struct scsi_device *, void *)); +extern void __starget_for_each_device(struct scsi_target *, void *, + void (*fn)(struct scsi_device *, + void *)); /* only exposed to implement shost_for_each_device */ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, |