tree c2d2c32117e74eefdd8876d6903c936cbaf51e06
parent 9e9d0452fe12115b1c1883c0d4d2ee509079791b
author Joe Eykholt <jeykholt@cisco.com> 1251234083 -0700
committer James Bottomley <James.Bottomley@suse.de> 1252602464 -0500

[SCSI] libfc: fix rport event race between READY and LOGO

When a remote port becomes ready and a LOGO is received before
the READY event is in rport_work waiting on the mutex, the
event is changed to LOGO and the work queued, so both the
calls to rport_work see the LOGO event, and both try to do
the list_del(), causing a crash.

Don't change the event if it is already set.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>