From c7b79b9b35e985e16df0fe7273d735770fcb2265 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Wed, 16 Dec 2009 17:24:00 -0500
Subject: [PATCH] --- yaml --- r: 178063 b: refs/heads/master c:
 96c96612e952f63cc0055db9df7d8b5b1ada02be h: refs/heads/master i:   178061:
 9c91402e7f694521a0588a1f9fbb8c9cd0a224e0   178059:
 0f4a7cff3da5dcac68bf7c0f84dd2313adb6f4ce   178055:
 1584eedfb0b53f01ed9c2cf3730a759fe84a5fd6   178047:
 cffdf180fd64d27665eb4751dfb9b4eb0244c0d7 v: v3

---
 [refs]                           | 2 +-
 trunk/tools/perf/builtin-probe.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 6467072daba5..0a8598eecc69 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 27f3b24de03fc7cec6f2406f8525ad18086c2121
+refs/heads/master: 96c96612e952f63cc0055db9df7d8b5b1ada02be
diff --git a/trunk/tools/perf/builtin-probe.c b/trunk/tools/perf/builtin-probe.c
index 7e741f54d798..c1e6774fd3ed 100644
--- a/trunk/tools/perf/builtin-probe.c
+++ b/trunk/tools/perf/builtin-probe.c
@@ -38,6 +38,7 @@
 #include "util/strlist.h"
 #include "util/event.h"
 #include "util/debug.h"
+#include "util/debugfs.h"
 #include "util/symbol.h"
 #include "util/thread.h"
 #include "util/session.h"
@@ -205,6 +206,9 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
 	if ((!session.nr_probe && !session.dellist && !session.list_events))
 		usage_with_options(probe_usage, options);
 
+	if (debugfs_valid_mountpoint(debugfs_path) < 0)
+		die("Failed to find debugfs path.");
+
 	if (session.list_events) {
 		if (session.nr_probe != 0 || session.dellist) {
 			pr_warning("  Error: Don't use --list with"