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authorJulia Lawall <julia@diku.dk>2010-05-26 09:54:21 +0400
committerDavid S. Miller <davem@davemloft.net>2010-05-29 11:18:48 +0400
commit5daf47bb4e708fde32c1856a0d049e3c3d03c36c (patch)
tree422ee585ceb87822c7e8ae18208197d25e62e23a /net/rds/ib_cm.c
parente72e9f3814cb8c1076d627c29cec90b005838ac3 (diff)
downloadlinux-5daf47bb4e708fde32c1856a0d049e3c3d03c36c.tar.xz
net/rds: Add missing mutex_unlock
Add a mutex_unlock missing on the error path. In each case, whenever the label out is reached from elsewhere in the function, mutex is not locked. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E1; @@ * mutex_lock(E1); <+... when != E1 if (...) { ... when != E1 * return ...; } ...+> * mutex_unlock(E1); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Reviewed-by: Zach Brown <zach.brown@oracle.com> Acked-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib_cm.c')
-rw-r--r--net/rds/ib_cm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 10ed0d55f759..f68832798db2 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -475,6 +475,7 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id,
err = rds_ib_setup_qp(conn);
if (err) {
rds_ib_conn_error(conn, "rds_ib_setup_qp failed (%d)\n", err);
+ mutex_unlock(&conn->c_cm_lock);
goto out;
}