perf trace: Fix detection of script extension

The extension starts with the last dot in the name, not the first.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1286723462.2955.206.camel@localhost>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 3ea62199ffe1..deda1a93131e 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -282,7 +282,7 @@ static int parse_scriptname(const struct option *opt __used,
                 script++;
         } else {
                 script = str;
-                ext = strchr(script, '.');
+                ext = strrchr(script, '.');
                 if (!ext) {
                         fprintf(stderr, "invalid script extension");
                         return -1;