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SubjectRe: [v2] wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_rfreg()
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Wei Chen <harperchen1110@gmail.com> wrote:

> If there is a failure during copy_from_user or user-provided data buffer
> is invalid, rtl_debugfs_set_write_rfreg should return negative error code
> instead of a positive value count.
>
> Fix this bug by returning correct error code. Moreover, the check of buffer
> against null is removed since it will be handled by copy_from_user.
>
> Fixes: 610247f46feb ("rtlwifi: Improve debugging by using debugfs")
> Signed-off-by: Wei Chen <harperchen1110@gmail.com>
> Reviewed-by: Simon Horman <simon.horman@corigine.com>

Patch applied to wireless-next.git, thanks.

905a9241e4e8 wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_rfreg()

--
https://patchwork.kernel.org/project/linux-wireless/patch/20230326053138.91338-1-harperchen1110@gmail.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

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