linux-kernel - [tip:perf/urgent] perf: Fix error return code

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Message-ID: <tip-c481420248c6730246d2a1b1773d5d7007ae0835@git.kernel.org>
Date:	Sun, 14 Apr 2013 09:05:25 -0700
From:	tip-bot for Wei Yongjun <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	yongjun_wei@...ndmicro.com.cn, tglx@...utronix.de
Subject: [tip:perf/urgent] perf: Fix error return code

Commit-ID:  c481420248c6730246d2a1b1773d5d7007ae0835
Gitweb:     http://git.kernel.org/tip/c481420248c6730246d2a1b1773d5d7007ae0835
Author:     Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
AuthorDate: Fri, 12 Apr 2013 11:05:54 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 12 Apr 2013 06:33:56 +0200

perf: Fix error return code

Fix to return -ENOMEM in the allocation error case instead of 0
(if pmu_bus_running == 1), as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
Cc: a.p.zijlstra@...llo.nl
Cc: paulus@...ba.org
Cc: acme@...stprotocols.net
Link: http://lkml.kernel.org/r/CAPgLHd8j_fWcgqe%3DKLWjpBj%2B%3Do0Pw6Z-SEq%3DNTPU08c2w1tngQ@mail.gmail.com
[ Tweaked the error code setting placement and the changelog. ]
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/events/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 7f0d67e..7e0962e 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5987,6 +5987,7 @@ skip_type:
 	if (pmu->pmu_cpu_context)
 		goto got_cpu_context;
 
+	ret = -ENOMEM;
 	pmu->pmu_cpu_context = alloc_percpu(struct perf_cpu_context);
 	if (!pmu->pmu_cpu_context)
 		goto free_dev;
--
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