diff options
| author | Alexander Levin <[email protected]> | 2017-06-03 03:39:13 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2017-06-03 09:28:45 +0200 |
| commit | e5aeee51f6b4fb22e851105ee6d8ad211c40a214 (patch) | |
| tree | ce87eee9d18994da498c862b850b07a14a65d6cd | |
| parent | 49dfe2a6779717d9c18395684ee31bdc98b22e53 (diff) | |
perf/core: Don't release cred_guard_mutex if not taken
If we failed to acquire task's cred_guard_mutex we shouldn't proceed
to release it in the error path.
Fixes: a63fbed776c ("perf/tracing/cpuhotplug: Fix locking order")
Signed-off-by: Alexander Levin <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
| -rw-r--r-- | kernel/events/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index b97cda4d1777..1f1b8cdaca2d 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -9878,7 +9878,7 @@ SYSCALL_DEFINE5(perf_event_open, if (task) { err = mutex_lock_interruptible(&task->signal->cred_guard_mutex); if (err) - goto err_cred; + goto err_task; /* * Reuse ptrace permission checks for now. |