[PATCH] perf-record: Check correct pid when forking

From: Borislav Petkov
Date: Mon May 31 2010 - 17:18:27 EST


When forking the child to be traced, we should check the correct return
value from fork() and not a local variable which is otherwise unused.

Signed-off-by: Borislav Petkov <bp@xxxxxxxxx>
---
tools/perf/builtin-record.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 9bc8905..dc3435e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -503,7 +503,6 @@ static int __cmd_record(int argc, const char **argv)
{
int i, counter;
struct stat st;
- pid_t pid = 0;
int flags;
int err;
unsigned long waking = 0;
@@ -572,7 +571,7 @@ static int __cmd_record(int argc, const char **argv)

if (forks) {
child_pid = fork();
- if (pid < 0) {
+ if (child_pid < 0) {
perror("failed to fork");
exit(-1);
}
--
1.7.1


--
Regards/Gruss,
Boris.
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