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| author | Cyrill Gorcunov <gorcunov@gmail.com> | 2008-05-12 14:02:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-13 08:02:26 -0700 |
| commit | 43f14d856f013a4cc63da2c765617c665274338c (patch) | |
| tree | f43026859c7fb6c6d9268fb0d6ff05fecb002652 | |
| parent | d850a2fac11e4dd45d1d3d493a5a071b06c58c99 (diff) | |
| download | op-kernel-dev-43f14d856f013a4cc63da2c765617c665274338c.zip op-kernel-dev-43f14d856f013a4cc63da2c765617c665274338c.tar.gz | |
eCryptFS: fix imbalanced mutex locking
Fix imbalanced calls for mutex lock/unlock on ecryptfs_daemon_hash_mux
Revealed by Ingo Molnar: http://lkml.org/lkml/2008/5/7/260
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/ecryptfs/miscdev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c index 788995e..6560da1 100644 --- a/fs/ecryptfs/miscdev.c +++ b/fs/ecryptfs/miscdev.c @@ -257,12 +257,14 @@ ecryptfs_miscdev_read(struct file *file, char __user *buf, size_t count, mutex_lock(&daemon->mux); if (daemon->flags & ECRYPTFS_DAEMON_ZOMBIE) { rc = 0; + mutex_unlock(&ecryptfs_daemon_hash_mux); printk(KERN_WARNING "%s: Attempt to read from zombified " "daemon\n", __func__); goto out_unlock_daemon; } if (daemon->flags & ECRYPTFS_DAEMON_IN_READ) { rc = 0; + mutex_unlock(&ecryptfs_daemon_hash_mux); goto out_unlock_daemon; } /* This daemon will not go away so long as this flag is set */ |
