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SubjectRe: [PATCH][next] net: dsa: sja1105: Fix assigned yet unused return code rc
On Wed, Jun 09, 2021 at 06:43:53PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> The return code variable rc is being set to return error values in two
> places in sja1105_mdiobus_base_tx_register and yet it is not being
> returned, the function always returns 0 instead. Fix this by replacing
> the return 0 with the return code rc.
>
> Addresses-Coverity: ("Unused value")
> Fixes: 5a8f09748ee7 ("net: dsa: sja1105: register the MDIO buses for 100base-T1 and 100base-TX")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
> drivers/net/dsa/sja1105/sja1105_mdio.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/dsa/sja1105/sja1105_mdio.c b/drivers/net/dsa/sja1105/sja1105_mdio.c
> index 8dfd06318b23..08517c70cb48 100644
> --- a/drivers/net/dsa/sja1105/sja1105_mdio.c
> +++ b/drivers/net/dsa/sja1105/sja1105_mdio.c
> @@ -171,7 +171,7 @@ static int sja1105_mdiobus_base_tx_register(struct sja1105_private *priv,
> out_put_np:
> of_node_put(np);
>
> - return 0;
> + return rc;

Should this function really return success if of_device_is_available()?

regards,
dan carpenter

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