lkml.org 
[lkml]   [2019]   [Jun]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH][next] clk: bcm2835: fix memork leak on unfree'd pll struct
Date
Quoting Colin King (2019-06-07 03:45:33)
> From: Colin Ian King <colin.king@canonical.com>
>
> The pll struct is being allocated but not kfree'd on an error return
> path when devm_clk_hw_register fails. Fix this with a kfree on pll
> if an error occurs.
>
> Addresses-Coverity: ("Resource leak")
> Fixes: b19f009d4510 ("clk: bcm2835: Migrate to clk_hw based registration and OF APIs")

I suspect this problem was there before this commit, but OK.

> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
> drivers/clk/bcm/clk-bcm2835.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
> index 770bb01f523e..90584deaf416 100644
> --- a/drivers/clk/bcm/clk-bcm2835.c
> +++ b/drivers/clk/bcm/clk-bcm2835.c
> @@ -1310,8 +1310,10 @@ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman,
> pll->hw.init = &init;
>
> ret = devm_clk_hw_register(cprman->dev, &pll->hw);
> - if (ret)
> + if (ret) {
> + kfree(pll);
> return NULL;
> + }
> return &pll->hw;
> }

Aren't there more leaks in this driver?

\
 
 \ /
  Last update: 2019-06-07 21:04    [W:0.038 / U:0.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site