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| author | Bhanu Gollapudi <bprakash@broadcom.com> | 2011-03-18 03:13:26 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-03-23 19:36:59 +0300 |
| commit | 839900c69d5b8a07a4df8e9bd9d1e59a5c556811 (patch) | |
| tree | 067b746caab1ba5ee6d38c73a56df9f7bb953c9c /tools | |
| parent | 70c7c88a1a65ca683eb7f3fe3ce79c72f29d845e (diff) | |
| download | linux-839900c69d5b8a07a4df8e9bd9d1e59a5c556811.tar.xz | |
[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>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions