From: Tejun Heo <tj@kernel.org>
Date: Sat, 1 May 2010 08:11:35 +0000 (+0200)
Subject: perf: Fix resource leak in failure path of perf_event_open()
X-Git-Tag: firefly_0821_release~10186^2~1683
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ef0c64308b5dfa779b0c22508ad755abe49938ac;p=firefly-linux-kernel-4.4.55.git

perf: Fix resource leak in failure path of perf_event_open()

commit 048c852051d2bd5da54a4488bc1f16b0fc74c695 upstream.

perf_event_open() kfrees event after init failure which doesn't
release all resources allocated by perf_event_alloc().  Use
free_event() instead.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <4BDBE237.1040809@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 447e8db3e4ed..72df1eb48282 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -4609,7 +4609,7 @@ err_fput_free_put_context:
 
 err_free_put_context:
 	if (err < 0)
-		kfree(event);
+		free_event(event);
 
 err_put_context:
 	if (err < 0)