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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 /drivers/scsi/esp_scsi.c | |
| parent | 794e64d5e9c7f088378e093a48eb36a30091d82d (diff) | |
| download | linux-riscv-522939d45c293388e6a360210905f9230298df16.tar.gz linux-riscv-522939d45c293388e6a360210905f9230298df16.tar.bz2 linux-riscv-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 'drivers/scsi/esp_scsi.c')
| -rw-r--r-- | drivers/scsi/esp_scsi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 4ed3a5297066..bfdee5968892 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2026,8 +2026,8 @@ static void esp_reset_cleanup(struct esp *esp) tp->flags |= ESP_TGT_CHECK_NEGO; if (tp->starget) - starget_for_each_device(tp->starget, NULL, - esp_clear_hold); + __starget_for_each_device(tp->starget, NULL, + esp_clear_hold); } esp->flags &= ~ESP_FLAG_RESETTING; } |