Re: [PATCH v2 2/4] staging: r8188eu: add error handling of rtw_read16

[Pavel Skripkin <paskripkin@xxxxxxxxx>]

Hi Greg,

On 6/6/22 08:48, Greg KH wrote:
> > diff --git a/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c
> > index e67ecbd1ba79..6662ebc30f7b 100644
> > --- a/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c
> > +++ b/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c
> > @@ -249,11 +249,14 @@ static void efuse_read_phymap_from_txpktbuf(
> >  		hi32 = cpu_to_le32(rtw_read32(adapter, REG_PKTBUF_DBG_DATA_H));
> >  
> >  		if (i == 0) {
> > +			u16 reg;
> > +
> >  			/* Although lenc is only used in a debug statement,
> >  			 * do not remove it as the rtw_read16() call consumes
> >  			 * 2 bytes from the EEPROM source.
> >  			 */
> > -			rtw_read16(adapter, REG_PKTBUF_DBG_DATA_L);
> > +			res = rtw_read16(adapter, REG_PKTBUF_DBG_DATA_L, &reg);
> > +			(void)res;
>
> Same here, that line isn't ok.
hm, that place is not obvious.

I guess, on-chip EEPROM acts like a FIFO, so this read must be completed 
w/o any errors, so I will simply propagate an error to callers

And will place another "FIXME" for further work :)

thanks,


With regards,
Pavel Skripkin