wifi: rtw88: fix uninitialized use of primary channel index

clang reports uninitialized use:

>> drivers/net/wireless/realtek/rtw88/main.c:731:2: warning: variable
   'primary_channel_idx' is used uninitialized whenever switch default is
   taken [-Wsometimes-uninitialized]
           default:
           ^~~~~~~
   drivers/net/wireless/realtek/rtw88/main.c:754:39: note: uninitialized
   use occurs here
           hal->current_primary_channel_index = primary_channel_idx;
                                                ^~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/realtek/rtw88/main.c:687:24: note: initialize the
   variable 'primary_channel_idx' to silence this warning
           u8 primary_channel_idx;
                                 ^
                                  = '\0'

This situation could not happen, because possible channel bandwidth
20/40/80MHz are enumerated.

Fixes: 341dd1f7de4c ("wifi: rtw88: add the update channel flow to support setting by parameters")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Ping-Ke Shih <[email protected]>
Reviewed-by: Nathan Chancellor <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Johannes Berg <[email protected]>

0 files changed, 0 insertions, 0 deletions