[GFS2] possible null pointer dereference fixup
gfs2_alloc_get may fail so we have to check it to prevent
NULL pointer dereference.
Signed-off-by: Cyrill Gorcunov <gorcunov@gamil.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index a3753c7..94070ad 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1868,11 +1868,14 @@
if (!ht)
return -ENOMEM;
- gfs2_alloc_get(dip);
+ if (!gfs2_alloc_get(dip)) {
+ error = -ENOMEM;
+ goto out;
+ }
error = gfs2_quota_hold(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
- goto out;
+ goto out_put;
error = gfs2_rindex_hold(sdp, &dip->i_alloc->al_ri_gh);
if (error)
@@ -1946,8 +1949,9 @@
gfs2_glock_dq_uninit(&dip->i_alloc->al_ri_gh);
out_qs:
gfs2_quota_unhold(dip);
-out:
+out_put:
gfs2_alloc_put(dip);
+out:
kfree(ht);
return error;
}