[PATCH] quota: fix possible oops on quotaoff

Remove dquot structures from quota file on quotaon - quota code does not
expect them to be there.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/dquot.c b/fs/dquot.c
index 11048e0b32c9..3995ce7907cc 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1443,6 +1443,7 @@ static int vfs_quota_on_inode(struct inode *inode, int type, int format_id)
         oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA);
         inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE;
         up_write(&dqopt->dqptr_sem);
+        sb->dq_op->drop(inode);
 
         error = -EIO;
         dqopt->files[type] = igrab(inode);