posix-cpu-timers: fix clock_gettime with CLOCK_PROCESS_CPUTIME_ID

Since CLOCK_PROCESS_CPUTIME_ID is in fact translated to -6, the switch
statement in cpu_clock_sample_group() must first mask off the irrelevant
bits, similar to cpu_clock_sample().

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
--
 posix-cpu-timers.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 895337b..4e5288a 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: