aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/vdso/vclock_gettime.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-05-11 14:44:27 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-11 14:44:31 +0200
commit41fb454ebe6024f5c1e3b3cbc0abc0da762e7b51 (patch)
tree51c50bcb67a5039448ddfa1869d7948cab1217e9 /arch/x86/vdso/vclock_gettime.c
parent19c1a6f5764d787113fa323ffb18be7991208f82 (diff)
parent091bf7624d1c90cec9e578a18529f615213ff847 (diff)
Merge commit 'v2.6.30-rc5' into core/iommu
Merge reason: core/iommu was on an .30-rc1 base, update it to .30-rc5 to refresh. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/vdso/vclock_gettime.c')
-rw-r--r--arch/x86/vdso/vclock_gettime.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index d9d35824c56..6a40b78b46a 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -104,11 +104,13 @@ notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
{
long ret;
if (likely(gtod->sysctl_enabled && gtod->clock.vread)) {
- BUILD_BUG_ON(offsetof(struct timeval, tv_usec) !=
- offsetof(struct timespec, tv_nsec) ||
- sizeof(*tv) != sizeof(struct timespec));
- do_realtime((struct timespec *)tv);
- tv->tv_usec /= 1000;
+ if (likely(tv != NULL)) {
+ BUILD_BUG_ON(offsetof(struct timeval, tv_usec) !=
+ offsetof(struct timespec, tv_nsec) ||
+ sizeof(*tv) != sizeof(struct timespec));
+ do_realtime((struct timespec *)tv);
+ tv->tv_usec /= 1000;
+ }
if (unlikely(tz != NULL)) {
/* Avoid memcpy. Some old compilers fail to inline it */
tz->tz_minuteswest = gtod->sys_tz.tz_minuteswest;