There would be a NULL pointer dereference if bdev is NULL
Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
---
fs/quota/dquot.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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)) {
--
1.8.4.2
--
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