h63xx: nfs mount works, gpe image boots to ts config screen.

[linux-2.6-omap-h63xx.git] / kernel / posix-cpu-timers.c

diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 153dcb2639c3df614c7862041a9d485b7dbe6614..4e5288a831de2e696260c12f97d60fdbcfc551a3 100644 (file)
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -311,7 +311,7 @@ static int cpu_clock_sample_group(const clockid_t which_clock,
        struct task_cputime cputime;
 
        thread_group_cputime(p, &cputime);
-       switch (which_clock) {
+       switch (CPUCLOCK_WHICH(which_clock)) {
        default:
                return -EINVAL;
        case CPUCLOCK_PROF:
@@ -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;