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| /openbmc/linux/drivers/net/wireless/realtek/rtlwifi/ |
| H A D | debug.c | diff 905a9241e4e8c15d2c084fee916280514848fe35 Sun Mar 26 00:31:38 CDT 2023 Wei Chen <harperchen1110@gmail.com> wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_rfreg()
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>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230326053138.91338-1-harperchen1110@gmail.com
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