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rtw88: Fix return value of rtw_wow_check_fw_status

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Clang warns that ret is used uninitialzed.
And we found that actually the return type should be "int" instead
of "bool".

Fixes: 44bc17f7f5 ("rtw88: support wowlan feature for 8822c")
Link: https://github.com/ClangBuiltLinux/linux/issues/850
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com> # build
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Chin-Yen Lee 2020-02-03 14:01:57 +08:00 committed by Kalle Valo
parent 577ddbee1f
commit ebe8e6116a
1 changed files with 11 additions and 12 deletions
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23
drivers/net/wireless/realtek/rtw88/wow.c
View file

@ -281,27 +281,26 @@ static void rtw_wow_rx_dma_start(struct rtw_dev *rtwdev)
rtw_write32_clr(rtwdev, REG_RXPKT_NUM, BIT_RW_RELEASE);
}
static bool rtw_wow_check_fw_status(struct rtw_dev *rtwdev, bool wow_enable)
static int rtw_wow_check_fw_status(struct rtw_dev *rtwdev, bool wow_enable)
{
bool ret;
/* wait 100ms for wow firmware to finish work */
msleep(100);
if (wow_enable) {
if (!rtw_read8(rtwdev, REG_WOWLAN_WAKE_REASON))
ret = 0;
if (rtw_read8(rtwdev, REG_WOWLAN_WAKE_REASON))
goto wow_fail;
} else {
if (rtw_read32_mask(rtwdev, REG_FE1IMR, BIT_FS_RXDONE) == 0 &&
rtw_read32_mask(rtwdev, REG_RXPKT_NUM, BIT_RW_RELEASE) == 0)
ret = 0;
if (rtw_read32_mask(rtwdev, REG_FE1IMR, BIT_FS_RXDONE) ||
rtw_read32_mask(rtwdev, REG_RXPKT_NUM, BIT_RW_RELEASE))
goto wow_fail;
}
if (ret)
rtw_err(rtwdev, "failed to check wow status %s\n",
wow_enable ? "enabled" : "disabled");
return 0;
return ret;
wow_fail:
rtw_err(rtwdev, "failed to check wow status %s\n",
wow_enable ? "enabled" : "disabled");
return -EBUSY;
}
static void rtw_wow_fw_security_type_iter(struct ieee80211_hw *hw,