Jinjie Ruan <ruanjinjie@xxxxxxxxxx> wrote:
> debugfs_create_dir() returns ERR_PTR and never return NULL.
>
> As Russell suggested, this patch removes the error checking for
> debugfs_create_dir(). This is because the DebugFS kernel API is developed
> in a way that the caller can safely ignore the errors that occur during
> the creation of DebugFS nodes. The debugfs APIs have a IS_ERR() judge in
> start_creating() which can handle it gracefully. So these checks are
> unnecessary.
>
> Fixes: 5e6e3a92b9a4 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
> Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
> Suggested-by: Russell King (Oracle) <linux@xxxxxxxxxxxxxxx>
Patch applied to wireless-next.git, thanks.
50180c7f8e3d wifi: mwifiex: debugfs: Drop unnecessary error check for debugfs_create_dir()
--
https://patchwork.kernel.org/project/linux-wireless/patch/20230903030216.1509013-3-ruanjinjie@xxxxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
