| Message ID | 201308310423.30322.sergei.shtylyov@cogentembedded.com |
|---|---|
| State | Changes Requested, archived |
| Delegated to: | David Miller |
| Headers | show |
On Sat, Aug 31, 2013 at 04:23:29AM +0400, Sergei Shtylyov wrote: > Check the platform data pointer before dereferencing it and error out of the > probe() method if it's NULL. > > This has additional effect of preventing kernel oops with outdated platform data > containing zero PHY address instead (such as on SolutionEngine7710). > > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Simon Horman <horms@verge.net.au> > > --- > This patch is against Dave's 'net-next.git' repo. > > drivers/net/ethernet/renesas/sh_eth.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > Index: net-next/drivers/net/ethernet/renesas/sh_eth.c > =================================================================== > --- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c > +++ net-next/drivers/net/ethernet/renesas/sh_eth.c > @@ -2653,6 +2653,12 @@ static int sh_eth_drv_probe(struct platf > pm_runtime_enable(&pdev->dev); > pm_runtime_resume(&pdev->dev); > > + if (!pd) { > + dev_err(&pdev->dev, "no platform data\n"); > + ret = -EINVAL; > + goto out_release; > + } > + > /* get PHY ID */ > mdp->phy_id = pd->phy; > mdp->phy_interface = pd->phy_interface; > -- > To unsubscribe from this list: send the line "unsubscribe linux-sh" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Date: Wed, 30 Oct 2013 22:55:13 +0300 > David, could you please merge this patch? It has a value of its own, > regardless of the device tree support in patch 2 (which got bloked). Then it needs to be resubmitted. Any time a part of series is rejected or needs changes, it is entirely dropped and no longer will I refer to it in patchwork. To avoid any ambiguity, the submitted must then resubmit anythign he wishes to be applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hello. On 08/31/2013 04:23 AM, Sergei Shtylyov wrote: > Check the platform data pointer before dereferencing it and error out of the > probe() method if it's NULL. > This has additional effect of preventing kernel oops with outdated platform data > containing zero PHY address instead (such as on SolutionEngine7710). > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> > --- > This patch is against Dave's 'net-next.git' repo. > drivers/net/ethernet/renesas/sh_eth.c | 6 ++++++ > 1 file changed, 6 insertions(+) > Index: net-next/drivers/net/ethernet/renesas/sh_eth.c > =================================================================== > --- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c > +++ net-next/drivers/net/ethernet/renesas/sh_eth.c > @@ -2653,6 +2653,12 @@ static int sh_eth_drv_probe(struct platf > pm_runtime_enable(&pdev->dev); > pm_runtime_resume(&pdev->dev); > > + if (!pd) { > + dev_err(&pdev->dev, "no platform data\n"); > + ret = -EINVAL; > + goto out_release; > + } > + > /* get PHY ID */ > mdp->phy_id = pd->phy; > mdp->phy_interface = pd->phy_interface; David, could you please merge this patch? It has a value of its own, regardless of the device tree support in patch 2 (which got bloked). WBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Index: net-next/drivers/net/ethernet/renesas/sh_eth.c =================================================================== --- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c +++ net-next/drivers/net/ethernet/renesas/sh_eth.c @@ -2653,6 +2653,12 @@ static int sh_eth_drv_probe(struct platf pm_runtime_enable(&pdev->dev); pm_runtime_resume(&pdev->dev); + if (!pd) { + dev_err(&pdev->dev, "no platform data\n"); + ret = -EINVAL; + goto out_release; + } + /* get PHY ID */ mdp->phy_id = pd->phy; mdp->phy_interface = pd->phy_interface;
Check the platform data pointer before dereferencing it and error out of the probe() method if it's NULL. This has additional effect of preventing kernel oops with outdated platform data containing zero PHY address instead (such as on SolutionEngine7710). Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> --- This patch is against Dave's 'net-next.git' repo. drivers/net/ethernet/renesas/sh_eth.c | 6 ++++++ 1 file changed, 6 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html