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authorDan Carpenter <dan.carpenter@oracle.com>2016-12-14 17:02:03 +0300
committerBob Peterson <rpeterso@redhat.com>2016-12-16 04:30:07 +0300
commit14d37564fa3dc4e5d4c6828afcd26ac14e6796c5 (patch)
treeb783969930df94ddfc2f4f6ad5d3e23deee55e50 /fs/gfs2/glock.c
parenta3443cda5588985a2724d6d0f4a5f04e625be6eb (diff)
downloadlinux-14d37564fa3dc4e5d4c6828afcd26ac14e6796c5.tar.xz
GFS2: Fix reference to ERR_PTR in gfs2_glock_iter_next
This patch fixes a place where function gfs2_glock_iter_next can reference an invalid error pointer. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/glock.c')
-rw-r--r--fs/gfs2/glock.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 14cbf60167a7..2928f1209b67 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1802,16 +1802,18 @@ void gfs2_glock_exit(void)
static void gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
{
- do {
- gi->gl = rhashtable_walk_next(&gi->hti);
+ while ((gi->gl = rhashtable_walk_next(&gi->hti))) {
if (IS_ERR(gi->gl)) {
if (PTR_ERR(gi->gl) == -EAGAIN)
continue;
gi->gl = NULL;
+ return;
}
- /* Skip entries for other sb and dead entries */
- } while ((gi->gl) && ((gi->sdp != gi->gl->gl_name.ln_sbd) ||
- __lockref_is_dead(&gi->gl->gl_lockref)));
+ /* Skip entries for other sb and dead entries */
+ if (gi->sdp == gi->gl->gl_name.ln_sbd &&
+ !__lockref_is_dead(&gi->gl->gl_lockref))
+ return;
+ }
}
static void *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos)