[GFS2] gfs2_lookupi() uninitialised var fix

fs/gfs2/inode.c: In function 'gfs2_lookupi':
fs/gfs2/inode.c:392: warning: 'error' may be used uninitialized in this function

Looks like a real bug to me.

Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index cacdb0d..366235d6 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -389,7 +389,7 @@
 	struct super_block *sb = dir->i_sb;
 	struct gfs2_inode *dip = GFS2_I(dir);
 	struct gfs2_holder d_gh;
-	int error;
+	int error = 0;
 	struct inode *inode = NULL;
 	int unlock = 0;