GFS2: put glock reference in error patch of read_rindex_entry

This patch fixes the error path of function read_rindex_entry
so that it correctly gives up its glock reference in cases where
there is a race to re-read the rindex after gfs2_grow.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 19bde40b4864..19354a20e5b1 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -640,6 +640,7 @@ static int read_rindex_entry(struct gfs2_inode *ip,
                 return 0;
 
         error = 0; /* someone else read in the rgrp; free it and ignore it */
+        gfs2_glock_put(rgd->rd_gl);
 
 fail:
         kfree(rgd->rd_bits);