On Mon, Apr 12, 2021 at 11:38:48AM +0200, Greg KH wrote: > On Sun, Apr 11, 2021 at 02:57:35PM +0200, Fabio Aiuto wrote: > > fix following compiler warning issue: > > > > drivers/staging/rtl8723bs/hal/sdio_halinit.c: > > In function 'CardDisableRTL8723BSdio': > > >> drivers/staging/rtl8723bs/hal/sdio_halinit.c:881:5: > > warning: variable 'ret' set but not used [-Wunused-but-set-variable] > > 881 | u8 ret = _FAIL; > > | ^~~ > > > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > Signed-off-by: Fabio Aiuto <fabioaiuto83@xxxxxxxxx> > > --- > > drivers/staging/rtl8723bs/hal/sdio_halinit.c | 6 ++---- > > 1 file changed, 2 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/staging/rtl8723bs/hal/sdio_halinit.c b/drivers/staging/rtl8723bs/hal/sdio_halinit.c > > index 2098384efe92..936181a73d73 100644 > > --- a/drivers/staging/rtl8723bs/hal/sdio_halinit.c > > +++ b/drivers/staging/rtl8723bs/hal/sdio_halinit.c > > @@ -878,10 +878,9 @@ static void CardDisableRTL8723BSdio(struct adapter *padapter) > > { > > u8 u1bTmp; > > u8 bMacPwrCtrlOn; > > - u8 ret = _FAIL; > > > > /* Run LPS WL RFOFF flow */ > > - ret = HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_enter_lps_flow); > > + HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_enter_lps_flow); > > > > /* ==== Reset digital sequence ====== */ > > > > @@ -909,9 +908,8 @@ static void CardDisableRTL8723BSdio(struct adapter *padapter) > > /* ==== Reset digital sequence end ====== */ > > > > bMacPwrCtrlOn = false; /* Disable CMD53 R/W */ > > - ret = false; > > rtw_hal_set_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); > > - ret = HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_card_disable_flow); > > + HalPwrSeqCmdParsing(padapter, PWR_CUT_ALL_MSK, PWR_FAB_ALL_MSK, PWR_INTF_SDIO_MSK, rtl8723B_card_disable_flow); > > } > > Why isn't the return value being checked and returned to the caller if > something goes wrong? Ignoring it feels wrong to me. > > thanks, > > greg k-h ok, I will propagate the return value to the whole caller chain. CardDisableRTL8723BSdio returns void, will change this to u8... thank you, fabio