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authorCyrill Gorcunov <gorcunov@gmail.com>2008-03-03 21:54:21 +0300
committerSteven Whitehouse <swhiteho@redhat.com>2008-03-31 10:41:28 +0100
commit182fe5abd8ebbb3a00c1be91f44e4783e139918c (patch)
tree7404993656166f2b7cb78e54e4275d44336ba27c /fs/gfs2/quota.c
parent105284970ba7d0d0ff4b97e57728eac7adf6a42a (diff)
[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>
Diffstat (limited to 'fs/gfs2/quota.c')
-rw-r--r--fs/gfs2/quota.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index a08dabd6ce9..636bccfd2bc 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -617,8 +617,9 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
int err = -EIO;
if (gfs2_is_stuffed(ip)) {
- struct gfs2_alloc *al = NULL;
- al = gfs2_alloc_get(ip);
+ struct gfs2_alloc *al = gfs2_alloc_get(ip);
+ if (!al)
+ return -ENOMEM;
/* just request 1 blk */
al->al_requested = 1;
gfs2_inplace_reserve(ip);
@@ -729,6 +730,10 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
if (nalloc) {
al = gfs2_alloc_get(ip);
+ if (!al) {
+ error = -ENOMEM;
+ goto out_gunlock;
+ }
al->al_requested = nalloc * (data_blocks + ind_blocks);