wifi: rtw88: do not ignore hardware read error during DPK

In 'rtw8822c_dpk_cal_coef1()', do not ignore error returned
by 'check_hw_ready()' but issue a warning to denote possible
DPK issue. Compile tested only.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 5227c2ee453d ("rtw88: 8822c: add SW DPK support")
Suggested-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250415090720.194048-1-dmantipov@yandex.ru

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 369ca75061b2b8f1d67b4a1ecfac444038354097..017d959de3ce70e50b90dbd304d3417e5c23109e 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -3951,7 +3951,8 @@ static void rtw8822c_dpk_cal_coef1(struct rtw_dev *rtwdev)
        rtw_write32(rtwdev, REG_NCTL0, 0x00001148);
        rtw_write32(rtwdev, REG_NCTL0, 0x00001149);
 
-       check_hw_ready(rtwdev, 0x2d9c, MASKBYTE0, 0x55);
+       if (!check_hw_ready(rtwdev, 0x2d9c, MASKBYTE0, 0x55))
+               rtw_warn(rtwdev, "DPK stuck, performance may be suboptimal");
 
        rtw_write8(rtwdev, 0x1b10, 0x0);
        rtw_write32_mask(rtwdev, REG_NCTL0, BIT_SUBPAGE, 0x0000000c);