[PATCH] clk: max77686: Avoid double free at remove time

[Laurent Pinchart]

The clk_lookup entry is dropped at remove time by a call to
clkdev_drop(). That function frees the entry, which is also freed by the
driver core as it has been allocated through devm_kzalloc(). This
results in a double free.

Use kzalloc() instead of devm_kzalloc() to fix this.

Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
 drivers/clk/clk-max77686.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c
index d098f72..6de05c5 100644
--- a/drivers/clk/clk-max77686.c
+++ b/drivers/clk/clk-max77686.c
@@ -130,8 +130,7 @@ static int max77686_clk_register(struct device *dev,
 	if (IS_ERR(clk))
 		return -ENOMEM;
 
-	max77686->lookup = devm_kzalloc(dev, sizeof(struct clk_lookup),
-					GFP_KERNEL);
+	max77686->lookup = kzalloc(sizeof(struct clk_lookup), GFP_KERNEL);
 	if (IS_ERR(max77686->lookup))
 		return -ENOMEM;
 
-- 
Regards,

Laurent Pinchart

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/