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authorIngo Molnar <mingo@kernel.org>2012-05-14 14:43:40 +0200
committerIngo Molnar <mingo@kernel.org>2012-05-14 14:43:40 +0200
commit9cba26e66d09bf394ae5a739627a1dc8b7cae6f4 (patch)
treef03743d576a0c7826b9921ad47e70370ebe80a22 /kernel/itimer.c
parentec83db0f78cd44c3b586ec1c3a348d1a8a389797 (diff)
parent73eff9f56e15598c8399c0b86899fd889b97f085 (diff)
Merge branch 'perf/uprobes' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/uprobes
Diffstat (limited to 'kernel/itimer.c')
-rw-r--r--kernel/itimer.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/itimer.c b/kernel/itimer.c
index 22000c3db0d..8d262b46757 100644
--- a/kernel/itimer.c
+++ b/kernel/itimer.c
@@ -284,8 +284,12 @@ SYSCALL_DEFINE3(setitimer, int, which, struct itimerval __user *, value,
if (value) {
if(copy_from_user(&set_buffer, value, sizeof(set_buffer)))
return -EFAULT;
- } else
- memset((char *) &set_buffer, 0, sizeof(set_buffer));
+ } else {
+ memset(&set_buffer, 0, sizeof(set_buffer));
+ printk_once(KERN_WARNING "%s calls setitimer() with new_value NULL pointer."
+ " Misfeature support will be removed\n",
+ current->comm);
+ }
error = do_setitimer(which, &set_buffer, ovalue ? &get_buffer : NULL);
if (error || !ovalue)