linux-kernel - Re: [PATCH 1/7] w35und: Kill dead HAL macros in wbhal

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Message-ID: <20100919214227.GC12416@elf.ucw.cz>
Date:	Sun, 19 Sep 2010 23:42:27 +0200
From:	Pavel Machek <pavel@....cz>
To:	Pekka Enberg <penberg@...nel.org>
Cc:	gregkh@...e.de, linux-kernel@...r.kernel.org,
	Lars Lindley <lindley@...ote.org>,
	Ruslan Pisarev <ruslan@...sarev.org.ua>
Subject: Re: [PATCH 1/7] w35und: Kill dead HAL macros in wbhal_f.h

Hi!

> Fixes an uninitialized variable access in _rx_iq_calibration_loop_winbond():
> 
>     CC [M]  drivers/staging/winbond/phy_calibration.o
>   drivers/staging/winbond/phy_calibration.c: In function ???_rx_iq_calibration_loop_winbond???:
>   drivers/staging/winbond/phy_calibration.c:1138: warning: ???val??? is used uninitialized in this function
> 

Are you sure this is correct?

> @@ -1132,18 +1132,6 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre
>  	PHY_DEBUG(("[CAL] -> [5]_rx_iq_calibration_loop()\n"));
>  	PHY_DEBUG(("[CAL] ** factor = %d\n", factor));
>  
> -
> -/* RF Control Override */
> -	hw_get_cxx_reg(phw_data, 0x80, &val);
> -	val |= BIT(19);
> -	hw_set_cxx_reg(phw_data, 0x80, val);
> -

We pass pointer to val somewhere, set a bit, write it back. Seems ok
to me...?

-- 
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