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perf stat: Remove use of die/exit and handle errors 

Allows perf to clean up properly on program termination.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-5-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
David Ahern 2012-08-26 12:24:44 -06:00 committed by Arnaldo Carvalho de Melo
parent 33d6aef513
commit fceda7feb4
1 changed files with 4 additions and 3 deletions
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7
tools/perf/builtin-stat.c
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@ -428,7 +428,7 @@ static int run_perf_stat(int argc __used, const char **argv)
if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) {
perror("failed to create pipes");
exit(1);
return -1;
}
if (forks) {
@ -510,7 +510,8 @@ static int run_perf_stat(int argc __used, const char **argv)
}
if (child_pid != -1)
kill(child_pid, SIGTERM);
die("Not all events could be opened.\n");
pr_err("Not all events could be opened.\n");
return -1;
}
counter->supported = true;
@ -1189,7 +1190,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
output = fopen(output_name, mode);
if (!output) {
perror("failed to create output file");
exit(-1);
return -1;
}
clock_gettime(CLOCK_REALTIME, &tm);
fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));