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authorShlomo Pongratz <shlomop@mellanox.com>2014-03-30 15:26:29 +0300
committerChristoph Hellwig <hch@lst.de>2014-05-19 13:33:00 +0200
commit72b9740201d5f0e24b0b8326a4949786a30ff628 (patch)
treee74603446a6e204dc3b9906cd41bbd3275102fe7 /drivers/scsi/libiscsi.c
parentabb14148c0f850e7201efc3e7aea1762f993606b (diff)
downloadlinux-72b9740201d5f0e24b0b8326a4949786a30ff628.tar.bz2
scsi/libiscsi: Fix static checker warning on bh locking
Commit 659743b "[SCSI] libiscsi: Reduce locking contention in fast path" introduced a new smatch warning on libiscsi.c "iscsi_xmit_task() warn: inconsistent returns bottom_half:: locked (1410 [(-61)]) unlocked (1425 [0], 1425 [s32min-(-1),1-s32max])", which we can eliminate by using non bh locking on the nested spin_lock call. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/libiscsi.c')
-rw-r--r--drivers/scsi/libiscsi.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 26dc005bb0f0..ecd7bd304efe 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1442,9 +1442,9 @@ static int iscsi_xmit_task(struct iscsi_conn *conn)
conn->task = NULL;
}
/* regular RX path uses back_lock */
- spin_lock_bh(&conn->session->back_lock);
+ spin_lock(&conn->session->back_lock);
__iscsi_put_task(task);
- spin_unlock_bh(&conn->session->back_lock);
+ spin_unlock(&conn->session->back_lock);
return rc;
}