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| author | Takashi Iwai <tiwai@suse.de> | 2008-12-01 18:02:17 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-12-01 18:02:17 +0100 |
| commit | 3af4182cc5be7d5505f9801ee3297373f1872446 (patch) | |
| tree | 214348d40ed547a72f9612a7e5c94a01afded812 /kernel/posix-cpu-timers.c | |
| parent | f5d4c67e41a262f0cdfaec1bb0fa8e5952187ef9 (diff) | |
| parent | c07f62e5f18123103459ff74e86af1518a5b8af5 (diff) | |
| download | op-kernel-dev-3af4182cc5be7d5505f9801ee3297373f1872446.zip op-kernel-dev-3af4182cc5be7d5505f9801ee3297373f1872446.tar.gz | |
Merge branch 'upstream' into topic/asoc
Diffstat (limited to 'kernel/posix-cpu-timers.c')
| -rw-r--r-- | kernel/posix-cpu-timers.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c index 153dcb2..895337b 100644 --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -1308,9 +1308,10 @@ static inline int task_cputime_expired(const struct task_cputime *sample, */ static inline int fastpath_timer_check(struct task_struct *tsk) { - struct signal_struct *sig = tsk->signal; + struct signal_struct *sig; - if (unlikely(!sig)) + /* tsk == current, ensure it is safe to use ->signal/sighand */ + if (unlikely(tsk->exit_state)) return 0; if (!task_cputime_zero(&tsk->cputime_expires)) { @@ -1323,6 +1324,8 @@ static inline int fastpath_timer_check(struct task_struct *tsk) if (task_cputime_expired(&task_sample, &tsk->cputime_expires)) return 1; } + + sig = tsk->signal; if (!task_cputime_zero(&sig->cputime_expires)) { struct task_cputime group_sample; |
