linux-kernel - [PATCH 9/9] powerpc/hv-24x7: Add missing put_cpu

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Message-Id: <1424210434-28070-10-git-send-email-sukadev@linux.vnet.ibm.com>
Date:	Tue, 17 Feb 2015 14:00:34 -0800
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	Michael Ellerman <mpe@...erman.id.au>,
	Paul Mackerras <paulus@...ba.org>
Cc:	peterz@...radead.org, <linux-kernel@...r.kernel.org>,
	linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 9/9] powerpc/hv-24x7: Add missing put_cpu_var()

Add missing put_cpu_var() for 24x7 requests.

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 fde6211..7d578d6 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1094,7 +1094,7 @@ 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 = commit_24x7_get_data(request_buffer, result_buffer);
 	if (ret) {
@@ -1107,6 +1107,8 @@ 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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