2023-07-31 05:39:24

by Jiri Slaby

[permalink] [raw]
Subject: Re: [PATCH] ath5k: Fix debugfs_create_dir error checking

On 31. 07. 23, 4:38, Atul Raut wrote:
> The debugfs_create_dir function returns ERR_PTR
> in case of error and the correct way to check an
> error is 'IS_ERR' inline function.
> This patch will replace the null-comparison with IS_ERR
>
> This issue was found with the help of Coccinelle.
> ./drivers/net/wireless/ath/ath5k/debug.c:985:6-12: Wrong debugfs call error processing on line 985
>
> Signed-off-by: Atul Raut <[email protected]>
> ---
> drivers/net/wireless/ath/ath5k/debug.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
> index 4b41160e5d38..08058b3f7e22 100644
> --- a/drivers/net/wireless/ath/ath5k/debug.c
> +++ b/drivers/net/wireless/ath/ath5k/debug.c
> @@ -982,7 +982,7 @@ ath5k_debug_init_device(struct ath5k_hw *ah)
> ah->debug.level = ath5k_debug;
>
> phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
> - if (!phydir)
> + if (IS_ERR(phydir))

Already fixed by:
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/

--
js
suse labs