Files
linux/drivers/net/wireless/realtek/rtlwifi
Wei Chen e8b61339ed wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_reg()
[ Upstream commit 5dbe1f8eb8 ]

If there is a failure during copy_from_user or user-provided data buffer is
invalid, rtl_debugfs_set_write_reg 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: 610247f46f ("rtlwifi: Improve debugging by using debugfs")
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230326054217.93492-1-harperchen1110@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-11 23:17:15 +09:00
..
2020-08-31 18:25:43 +03:00
2021-11-29 12:47:07 +02:00