diff options
| author | Ping-Ke Shih <pkshih@realtek.com> | 2022-08-15 14:20:04 +0800 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-08-26 12:16:19 +0200 |
| commit | 4ffb4d25ef1251d57881da183d6bec7f2dfe1e32 (patch) | |
| tree | 1536b1e3c940b710830e48844e38d61336326368 | |
| parent | be50baa40e90a18c3750b31a49be64929488d84b (diff) | |
| download | linux-4ffb4d25ef1251d57881da183d6bec7f2dfe1e32.tar.gz | |
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 <lkp@intel.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220815062004.22920-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/main.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c index 790dcfed1125..5a74dda97756 100644 --- a/drivers/net/wireless/realtek/rtw88/main.c +++ b/drivers/net/wireless/realtek/rtw88/main.c @@ -697,6 +697,7 @@ void rtw_update_channel(struct rtw_dev *rtwdev, u8 center_channel, switch (bandwidth) { case RTW_CHANNEL_WIDTH_20: + default: primary_channel_idx = RTW_SC_DONT_CARE; break; case RTW_CHANNEL_WIDTH_40: @@ -728,8 +729,6 @@ void rtw_update_channel(struct rtw_dev *rtwdev, u8 center_channel, cch_by_bw[RTW_CHANNEL_WIDTH_40] = center_channel - 4; } break; - default: - break; } switch (center_channel) { |