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| author | John Stultz <johnstul@us.ibm.com> | 2010-04-28 11:50:56 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-04-28 22:54:12 +0200 |
| commit | f008b2b9ac46014c18036a3ed6c5e73cf4c3477b (patch) | |
| tree | f9a19782b816b3b918ca51933fac7d65e7c1340c /fs | |
| parent | f4c30135fddb7d23d26f722b6f50e251d8764414 (diff) | |
| download | lwn-f008b2b9ac46014c18036a3ed6c5e73cf4c3477b.tar.gz lwn-f008b2b9ac46014c18036a3ed6c5e73cf4c3477b.zip | |
fs: namespace: Fix potential deadlock
do_unmount() does a lock() instead of unlock() in a return path which
will lead to a dead lock when this code path is taken. Fix the typo.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/namespace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 5459a05e8aa5..1a9232356ef9 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1233,7 +1233,7 @@ static int do_umount(struct vfsmount *mnt, int flags) */ vfsmount_write_lock(); if (count_mnt_count(mnt) != 2) { - vfsmount_write_lock(); + vfsmount_write_unlock(); return -EBUSY; } vfsmount_write_unlock(); |