diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-12-14 08:02:03 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-08 10:14:16 +0200 |
| commit | d4f97441cb888cf53b88f38ac0dc6bbe3a044910 (patch) | |
| tree | 4a55966a6e85a7819dcd2eaf22df05ab49cb316c /fs | |
| parent | 11bf4a8e1d5a300b38ca4bbe1156716b0174f2da (diff) | |
GFS2: Fix reference to ERR_PTR in gfs2_glock_iter_next
[ Upstream commit 14d37564fa3dc4e5d4c6828afcd26ac14e6796c5 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/gfs2/glock.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index ff36f5475d7e..09a0cf5f3dd8 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1798,16 +1798,18 @@ 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) |