diff options
| author | Robert Love <robert.w.love@intel.com> | 2010-12-01 01:18:23 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-12-21 19:24:20 +0100 |
| commit | 3c2c3bf23cbef8eed6cf815715d0bece5cb7b5ec (patch) | |
| tree | 3cca737e6945e452aeb8888c3aa36939d76aa338 /drivers/scsi/libfc | |
| parent | [SCSI] libfc: tune fc_exch_em_alloc() to be O(2) (diff) | |
| download | linux-3c2c3bf23cbef8eed6cf815715d0bece5cb7b5ec.tar.xz linux-3c2c3bf23cbef8eed6cf815715d0bece5cb7b5ec.zip | |
[SCSI] libfc: Fix incorrect locking and unlocking in FCP
The error handler grabs the si->scsi_queue_lock, but
in the case where the fsp pointer is NULL it releases
the scsi_host lock. This can lead to a variety of
system hangs depending on which is used first- the
scsi_host lock or the scsi_queue_lock.
This patch simply unlocks the correct lock when fcp
is NULL.
Signed-off-by: Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/libfc')
| -rw-r--r-- | drivers/scsi/libfc/fc_fcp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 2924363d142b..b9ad74de76da 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2004,7 +2004,7 @@ int fc_eh_abort(struct scsi_cmnd *sc_cmd) fsp = CMD_SP(sc_cmd); if (!fsp) { /* command completed while scsi eh was setting up */ - spin_unlock_irqrestore(lport->host->host_lock, flags); + spin_unlock_irqrestore(&si->scsi_queue_lock, flags); return SUCCESS; } /* grab a ref so the fsp and sc_cmd cannot be relased from under us */ |