linux-kernel - [PATCH 03/69] clocksource/drivers/mtk_timer: Fix memleak in mtk_timer

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Date:	Fri, 18 Dec 2015 15:17:16 +0100
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	tglx@...utronix.de
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	mingo@...nel.org, Alexey Klimov <alexey.klimov@...aro.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	linux-mediatek@...ts.infradead.org (moderated list:ARM/Mediatek SoC...)
Subject: [PATCH 03/69] clocksource/drivers/mtk_timer: Fix memleak in mtk_timer_init()

From: Alexey Klimov <alexey.klimov@...aro.org>

Add error path to clear evt struct allocated by kzalloc() in the beginning of
function mtk_timer_init().

Acked-by: Matthias Brugger <matthias.bgg@...il.com>
Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 drivers/clocksource/mtk_timer.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clocksource/mtk_timer.c b/drivers/clocksource/mtk_timer.c
index e1e0642..d67bc35 100644
--- a/drivers/clocksource/mtk_timer.c
+++ b/drivers/clocksource/mtk_timer.c
@@ -205,7 +205,7 @@ static void __init mtk_timer_init(struct device_node *node)
 	evt->gpt_base = of_io_request_and_map(node, 0, "mtk-timer");
 	if (IS_ERR(evt->gpt_base)) {
 		pr_err("Can't get resource\n");
-		return;
+		goto err_kzalloc;
 	}
 
 	evt->dev.irq = irq_of_parse_and_map(node, 0);
@@ -260,5 +260,7 @@ err_mem:
 	iounmap(evt->gpt_base);
 	of_address_to_resource(node, 0, &res);
 	release_mem_region(res.start, resource_size(&res));
+err_kzalloc:
+	kfree(evt);
 }
 CLOCKSOURCE_OF_DECLARE(mtk_mt6577, "mediatek,mt6577-timer", mtk_timer_init);
-- 
1.9.1

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