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Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/…

…kernel/git/rostedt/linux-trace into perf/urgent

Pull syscall tracing fix from Steve Rostedt.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
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2 parents c7a3a88 + 60916a9 commit 5c65ca75209de8cc1802e7d3761b404957689cda Ingo Molnar committed Aug 21, 2012
Showing with 4 additions and 0 deletions.
  1. +4 −0 kernel/trace/trace_syscalls.c
@@ -506,6 +506,8 @@ static void perf_syscall_enter(void *ignore, struct pt_regs *regs, long id)
int size;
syscall_nr = syscall_get_nr(current, regs);
+ if (syscall_nr < 0)
+ return;
if (!test_bit(syscall_nr, enabled_perf_enter_syscalls))
return;
@@ -580,6 +582,8 @@ static void perf_syscall_exit(void *ignore, struct pt_regs *regs, long ret)
int size;
syscall_nr = syscall_get_nr(current, regs);
+ if (syscall_nr < 0)
+ return;
if (!test_bit(syscall_nr, enabled_perf_exit_syscalls))
return;

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