rtw88 does not handle the failure during copy_from_user or invalid
user-provided data. We fix such problems by first modifying the return
value of customized function rtw_debugfs_copy_from_user. Then for all 
the callers rtw_debugfs_set_*, we receive the returned error code. 
Moreover, negative code is returned if the user-provided data is invalid
instead of a positive value count.

Zhang Shurong (10):
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_write_reg
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_read_reg
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_rsvd_page
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_single_input
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_h2c
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_rf_write
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_rf_read
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_fix_rate
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_coex_enable
  wifi: rtw88: fix incorrect error codes in rtw_debugfs_set_fw_crash

 drivers/net/wireless/realtek/rtw88/debug.c | 59 ++++++++++++++++------
 1 file changed, 43 insertions(+), 16 deletions(-)

-- 
2.40.0