linux-kernel - [PATCH 1/1] powerpc/hv-24x7: Add missing put_cpu

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Message-ID: <20150331015117.GA32741@us.ibm.com>
Date:	Mon, 30 Mar 2015 18:51:17 -0700
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	dev@...yps.com, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 1/1] powerpc/hv-24x7: Add missing put_cpu_var()

From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Date: Tue, 17 Feb 2015 14:14:36 -0500
Subject: [PATCH 1/1] powerpc/hv-24x7: Add missing put_cpu_var()

Add missing put_cpu_var() for 24x7 requests. This went missing in
commit f34b6c7 (3.18-rc3).

Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
---
 arch/powerpc/perf/hv-24x7.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 46be032..ead8878 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1096,7 +1096,7 @@ static unsigned long single_24x7_request(struct perf_event *event, u64 *count)
 
 	ret = add_event_to_24x7_request(event, request_buffer);
 	if (ret)
-		return ret;
+		goto out;
 
 	ret = make_24x7_request(request_buffer, result_buffer);
 	if (ret) {
@@ -1109,6 +1109,8 @@ static unsigned long single_24x7_request(struct perf_event *event, u64 *count)
 	*count = be64_to_cpu(resb->elements[0].element_data[0]);
 
 out:
+	put_cpu_var(hv_24x7_reqb);
+	put_cpu_var(hv_24x7_resb);
 	return ret;
 }
 
-- 
1.8.3.1

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