linux-kernel - [PATCH -next] perf: fix error return code

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Message-ID: <CAPgLHd8j_fWcgqe=KLWjpBj+=o0Pw6Z-SEq=NTPU08c2w1tngQ@mail.gmail.com>
Date:	Fri, 12 Apr 2013 11:05:54 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	a.p.zijlstra@...llo.nl, paulus@...ba.org, mingo@...hat.com,
	acme@...stprotocols.net
Cc:	yongjun_wei@...ndmicro.com.cn, linux-kernel@...r.kernel.org
Subject: [PATCH -next] perf: fix error return code

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 kernel/events/core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2427107..7504140 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6033,8 +6033,10 @@ skip_type:
 		goto got_cpu_context;
 
 	pmu->pmu_cpu_context = alloc_percpu(struct perf_cpu_context);
-	if (!pmu->pmu_cpu_context)
+	if (!pmu->pmu_cpu_context) {
+		ret = -ENOMEM;
 		goto free_dev;
+	}
 
 	for_each_possible_cpu(cpu) {
 		struct perf_cpu_context *cpuctx;

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