linux-kernel - [PATCH 4.1 30/65] arc: fix use of uninitialized arc

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Message-Id: <20150719190810.461923364@linuxfoundation.org>
Date:	Sun, 19 Jul 2015 12:07:49 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Max Filippov <jcmvbkbc@...il.com>,
	Vineet Gupta <vgupta@...opsys.com>
Subject: [PATCH 4.1 30/65] arc: fix use of uninitialized arc_pmu

4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Max Filippov <jcmvbkbc@...il.com>

commit 7002f77541f877a5590615ceb3da32b114f14b62 upstream.

static arc_pmu in the arch/arc/kernel/perf_event.c is not initialized as
it's shadowed by a local variable of the same name in the
arc_pmu_device_probe.

Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
Fixes: 03c94fcf954d "ARC: perf: make @arc_pmu static global"
Signed-off-by: Vineet Gupta <vgupta@...opsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arc/kernel/perf_event.c |    1 -
 1 file changed, 1 deletion(-)

--- a/arch/arc/kernel/perf_event.c
+++ b/arch/arc/kernel/perf_event.c
@@ -266,7 +266,6 @@ static int arc_pmu_add(struct perf_event
 
 static int arc_pmu_device_probe(struct platform_device *pdev)
 {
-	struct arc_pmu *arc_pmu;
 	struct arc_reg_pct_build pct_bcr;
 	struct arc_reg_cc_build cc_bcr;
 	int i, j, ret;


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