Messages in this thread | | | From | Mike Turquette <> | Subject | Re: [PATCH] clk: max77686: Avoid double free at remove time | Date | Mon, 14 Jan 2013 17:04:10 -0800 |
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Quoting Laurent Pinchart (2013-01-06 17:05:19) > 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@ideasonboard.com>
Hi Laurent,
Thanks for the fix. Applied to clk-next.
Regards, Mike
> --- > 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
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