linux-kernel - [PATCH 42/72] msi-wmi: Fix memory leak

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Message-Id: <1366276617-3553-43-git-send-email-luis.henriques@canonical.com>
Date:	Thu, 18 Apr 2013 10:16:27 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Maxim Mikityanskiy <maxtram95@...il.com>,
	"Lee, Chun-Yi" <jlee@...e.com>,
	Matthew Garrett <matthew.garrett@...ula.com>,
	Jonghwan Choi <jhbird.choi@...sung.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 42/72] msi-wmi: Fix memory leak

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

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

From: Maxim Mikityanskiy <maxtram95@...il.com>

commit 51c94491c82c3d9029f6e87a1a153db321d88e35 upstream.

Fix memory leak - don't forget to kfree ACPI object when returning from
msi_wmi_notify() after suppressing key event.

Signed-off-by: Maxim Mikityanskiy <maxtram95@...il.com>
Acked-by: Anisse Astier <anisse@...ier.eu>
Signed-off-by: Lee, Chun-Yi <jlee@...e.com>
Signed-off-by: Matthew Garrett <matthew.garrett@...ula.com>
Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/platform/x86/msi-wmi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index 2264331..b96766b 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -176,7 +176,7 @@ static void msi_wmi_notify(u32 value, void *context)
 				pr_debug("Suppressed key event 0x%X - "
 					 "Last press was %lld us ago\n",
 					 key->code, ktime_to_us(diff));
-				return;
+				goto msi_wmi_notify_exit;
 			}
 			last_pressed[key->code - SCANCODE_BASE] = cur;
 
@@ -195,6 +195,8 @@ static void msi_wmi_notify(u32 value, void *context)
 			pr_info("Unknown key pressed - %x\n", eventcode);
 	} else
 		pr_info("Unknown event received\n");
+
+msi_wmi_notify_exit:
 	kfree(response.pointer);
 }
 
-- 
1.8.1.2

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