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Groups > linux.kernel > #1716253
| From | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 2/2] net: phy: Don't use drv when it is NULL in phy_attached_print |
| Date | 2017-08-21 11:50 +0200 |
| Message-ID | <ugRvk-2Gw-11@gated-at.bofh.it> (permalink) |
| References | <ugPMS-1su-15@gated-at.bofh.it> <ugPMS-1su-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hello!
On 8/21/2017 10:52 AM, Romain Perier wrote:
> Currently, if this logging function is used prior the phy driver is
> binded to the phy device (that is usually done from .ndo_open),
s/binded/bound/.
> 'phydev->drv' might be NULL, resulting in a kernel crash. That is
> typically the case in the stmmac driver, info about the phy is displayed
> during the registration of the MDIO bus, and then genphy driver is binded
Likewise.
> to this phydev when .ndo_open is called.
>
> This commit fixes the issue by using the right genphy driver, when
> phydev->drv is NULL.
>
> Fixes: commit fbca164776e4 ("net: stmmac: Use the right logging functi")
"Commit" not needed here.
> Signed-off-by: Romain Perier <romain.perier@collabora.com>
[...]
MBR, Sergei
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[PATCH 2/2] net: phy: Don't use drv when it is NULL in phy_attached_print Romain Perier <romain.perier@collabora.com> - 2017-08-21 10:00 +0200
Re: [PATCH 2/2] net: phy: Don't use drv when it is NULL in phy_attached_print Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2017-08-21 11:50 +0200
Re: [PATCH 2/2] net: phy: Don't use drv when it is NULL in phy_attached_print Romain Perier <romain.perier@collabora.com> - 2017-08-21 13:50 +0200
Re: [PATCH 2/2] net: phy: Don't use drv when it is NULL in phy_attached_print Andrew Lunn <andrew@lunn.ch> - 2017-08-21 15:20 +0200
csiph-web