| Message ID | 1437467876-22106-7-git-send-email-yangds.fnst@cn.fujitsu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 20d1f74..140397a 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2208,7 +2208,8 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id, * of the cache could fail because of other unrelated dirty * data */ sync_filesystem(sb); - invalidate_bdev(sb->s_bdev); + if (sb->s_bdev) + invalidate_bdev(sb->s_bdev); } mutex_lock(&dqopt->dqonoff_mutex); if (sb_has_quota_loaded(sb, type)) {
There would be a NULL pointer dereference if bdev is NULL Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> --- fs/quota/dquot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)