[PATCH v2 3/3] clocksource: mtk_timer: fix memleak in mtk_timer_init()

From: Alexey Klimov
Date: Sun Oct 18 2015 - 20:10:56 EST


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

Acked-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Signed-off-by: Alexey Klimov <alexey.klimov@xxxxxxxxxx>
---
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 ac92ca2..a811e7c 100644
--- a/drivers/clocksource/mtk_timer.c
+++ b/drivers/clocksource/mtk_timer.c
@@ -200,7 +200,7 @@ 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);
@@ -255,5 +255,7 @@ 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);
--
2.1.4

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