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authorIngo Molnar <mingo@kernel.org>2012-08-21 11:49:30 +0200
committerIngo Molnar <mingo@kernel.org>2012-08-21 11:49:37 +0200
commit5c65ca75209de8cc1802e7d3761b404957689cda (patch)
tree63dbd61c004b5785df56fc224717eb7bc8219f6b
parentc7a3a88c938fbe3d70c2278e082b80eb830d1c58 (diff)
parent60916a9382e88fbf5e54fd36a3e658efd7ab7bed (diff)
downloadop-kernel-dev-5c65ca75209de8cc1802e7d3761b404957689cda.zip
op-kernel-dev-5c65ca75209de8cc1802e7d3761b404957689cda.tar.gz
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>
-rw-r--r--kernel/trace/trace_syscalls.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 60e4d78..6b245f64 100644
--- 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;
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