[PATCH 1/1] net: fec: correct phy_name buffer length when init phy_name
Shawn Guo
shawn.guo at linaro.org
Mon Jan 30 04:51:36 EST 2012
On Mon, Jan 30, 2012 at 04:08:12PM +0800, Richard Zhao wrote:
> Fix the bug that we got wrong phy_name on imx6q sabrelite board.
> snprintf used wrong length of phy_name.
> phy_name length is MII_BUS_ID_SIZE + 3 rather not MII_BUS_ID_SIZE.
> I change it to sizeof(phy_name).
>
> Signed-off-by: Richard Zhao <richard.zhao at linaro.org>
Acked-by: Shawn Guo <shawn.guo at linaro.org>
Since this patch fixes a regression seen on v3.3-rc1, it may be
suitable for -rc series.
The offending commit for the regression would be 391420f
(fec: use an unique MDIO bus name.) which increases the string
length of fep->mii_bus->id consequently mdio_bus_id.
Regards,
Shawn
> ---
> drivers/net/ethernet/freescale/fec.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
> index 7b25e9c..1c7aad8 100644
> --- a/drivers/net/ethernet/freescale/fec.c
> +++ b/drivers/net/ethernet/freescale/fec.c
> @@ -990,7 +990,7 @@ static int fec_enet_mii_probe(struct net_device *ndev)
> phy_id = 0;
> }
>
> - snprintf(phy_name, MII_BUS_ID_SIZE, PHY_ID_FMT, mdio_bus_id, phy_id);
> + snprintf(phy_name, sizeof(phy_name), PHY_ID_FMT, mdio_bus_id, phy_id);
> phy_dev = phy_connect(ndev, phy_name, &fec_enet_adjust_link, 0,
> fep->phy_interface);
> if (IS_ERR(phy_dev)) {
> --
> 1.7.5.4
>
>
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