[PATCH] fix warning in fs/ocfs2/stack_user.c

[Ingo Molnar]

this warning:

  fs/ocfs2/stack_user.c: In function âuser_cluster_connectâ:
  fs/ocfs2/stack_user.c:807: warning: âcontrolâ may be used uninitialized in this function

triggers because GCC does not recognize the (correct) error flow
between:

 - ocfs2_live_connection_new() and 'control'

Annotate it.

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 fs/ocfs2/stack_user.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index faec2d8..55e2cdc 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -804,7 +804,7 @@ static int fs_protocol_compare(struct ocfs2_protocol_version *existing,
 static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
 {
 	dlm_lockspace_t *fsdlm;
-	struct ocfs2_live_connection *control;
+	struct ocfs2_live_connection *uninitialized_var(control);
 	int rc = 0;
 
 	BUG_ON(conn == NULL);
--
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