Messages in this thread | | | Subject | Re: [patch added to the 3.12 stable tree] stmmac: fix check for phydev being open | From | Sergei Shtylyov <> | Date | Wed, 30 Sep 2015 14:28:23 +0300 |
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On 9/30/2015 1:00 PM, Jiri Slaby wrote:
> From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
> This patch has been added to the 3.12 stable tree. If you have any > objections, please let us know.
I do -- of_phy_connect() isn't called in this version, so the patch is totally useless.
> =============== > > commit dfc50fcaad574e5c8c85cbc83eca1426b2413fa4 upstream. > > Current check of phydev with IS_ERR(phydev) may make not much sense > because of_phy_connect() returns NULL on failure instead of error value. > > Still for checking result of phy_connect() IS_ERR() makes perfect sense. > > So let's use combined check IS_ERR_OR_NULL() that covers both cases. > > Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> > Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> > Cc: linux-kernel@vger.kernel.org > Cc: David Miller <davem@davemloft.net> > Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> > Signed-off-by: David S. Miller <davem@davemloft.net> > Signed-off-by: Jiri Slaby <jslaby@suse.cz> > --- > drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > index 8d4ccd35a016..14c0d31c10ad 100644 > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > @@ -801,8 +801,11 @@ static int stmmac_init_phy(struct net_device *dev) > > phydev = phy_connect(dev, phy_id_fmt, &stmmac_adjust_link, interface); > > - if (IS_ERR(phydev)) { > + if (IS_ERR_OR_NULL(phydev)) { > pr_err("%s: Could not attach to PHY\n", dev->name); > + if (!phydev) > + return -ENODEV; > + > return PTR_ERR(phydev); > } >
MBR, Sergei
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