perf probe: Don't call die()

Functions that were calling xzalloc also returned -1 when, for other
reasons, it could fail, and the calleds are coping with failures, so
stop using die() and xzalloc().

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 61c6d70..e4a4da3 100644 (file)
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -65,8 +65,10 @@ static int parse_probe_event(const char *str)
        int ret;
 
        pr_debug("probe-definition(%d): %s\n", params.nevents, str);
-       if (++params.nevents == MAX_PROBES)
-               die("Too many probes (> %d) are specified.", MAX_PROBES);
+       if (++params.nevents == MAX_PROBES) {
+               pr_err("Too many probes (> %d) were specified.", MAX_PROBES);
+               return -1;
+       }
 
        /* Parse a perf-probe command into event */
        ret = parse_perf_probe_command(str, pev);
@@ -84,7 +86,9 @@ static int parse_probe_event_argv(int argc, const char **argv)
        len = 0;
        for (i = 0; i < argc; i++)
                len += strlen(argv[i]) + 1;
-       buf = xzalloc(len + 1);
+       buf = zalloc(len + 1);
+       if (buf == NULL)
+               return -ENOMEM;
        len = 0;
        for (i = 0; i < argc; i++)
                len += sprintf(&buf[len], "%s ", argv[i]);