Re: [PATCH][V3] net: dsa: sja1105: fix check on while loop exit

From: David Miller
Date: Wed May 08 2019 - 16:15:08 EST


From: Colin King <colin.king@xxxxxxxxxxxxx>
Date: Wed, 8 May 2019 14:30:41 +0100

> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> The while-loop exit condition check is not correct; the
> loop should continue if the returns from the function calls are
> negative or the CRC status returns are invalid. Currently it
> is ignoring the returns from the function calls. Fix this by
> removing the status return checks and only break from the loop
> at the very end when we know that all the success condtions have
> been met.
>
> Kudos to Dan Carpenter for describing the correct fix and
> Vladimir Oltean for noting the change to the check on the number
> of retries.
>
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: 8aa9ebccae87 ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> Tested-by: Vladimir Oltean <olteanv@xxxxxxxxx>

Applied, thank you.