tree 067b746caab1ba5ee6d38c73a56df9f7bb953c9c
parent 70c7c88a1a65ca683eb7f3fe3ce79c72f29d845e
author Bhanu Gollapudi <bprakash@broadcom.com> 1300407206 -0700
committer James Bottomley <James.Bottomley@suse.de> 1300898219 -0500

[SCSI] bnx2fc: Avoid holding cq_lock when iounmap() is called

With kernel debugging enabled, holding cq_lock when calling
bnx2fc_free_session_resc() which calls iounmap() leads to a warning
stack trace [INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected].
iounmap() grabs a HARDIRQ-unsafe vmlist lock, so holding
spin_lock_bh(cq_lock) when calling iounmap() will trigger the LOCKDEP
warning.  Since cq_lock is required only to guard against deletion, hold
the lock just before freeing the cq.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>