tree d1b07c6ef9fc1b659056315b4ac95de27c9d0bd9
parent 131203a1ef53f3a4deb3260031bc53c7e4db4a24
author Joe Eykholt <jeykholt@cisco.com> 1251234195 -0700
committer James Bottomley <James.Bottomley@suse.de> 1252602479 -0500

[SCSI] libfc: fix: rport_recv_req needs disc_mutex when calling rport_lookup

The rport_lookup function must be called while holding the disc_mutex.
Otherwise, the rdata could be deleted just after that by another thread.

All callers now check the state after grabbing the rdata rp_mutex.
Even though rport_lookup skips ports in DELETE state, it does that
without holding the rdata rp_mutex, so that the state may change.

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>