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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-12-14 14:02:03 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-08 08:26:02 (GMT) |
| commit | 97766c6a8e586308d89309591f73aa3bc5ce0643 (patch) | |
| tree | 564ddb9aa0e47cba35488a3e0c757436c196afbb /fs | |
| parent | e236940a87f125de78f94efc44d4a6db043c26d6 (diff) | |
| download | linux-97766c6a8e586308d89309591f73aa3bc5ce0643.tar.xz | |
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 f7cae16..7a8b1d7 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1820,16 +1820,18 @@ 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) |