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

Pull syscall tracing fix from Steve Rostedt.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 60e4d78..6b245f6 100644 (file)
--- a/kernel/trace/trace_syscalls.c
+++ b/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;