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| author |   Alex Marginean <alexandru.marginean@nxp.com> | 2020-01-16 19:46:28 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-01-20 10:08:20 +0100 |
| commit | 3e41d04e2b7373490977d7145fb12109f23cde9c (patch) | |
| tree | ef84fc515320be248eca978320a1052726605226 /drivers/net/phy/phylink.c | |
| parent | net: phylink: Allow 2.5BASE-T, 5GBASE-T and 10GBASE-T for the 10G link modes (diff) | |
| download | linux-dev-3e41d04e2b7373490977d7145fb12109f23cde9c.tar.xz linux-dev-3e41d04e2b7373490977d7145fb12109f23cde9c.zip | |
net: phy: don't crash in phy_read/_write_mmd without a PHY driver
The APIs can be used by Ethernet drivers without actually loading a PHY
driver. This may become more widespread in the future with 802.3z
compatible MAC PCS devices being locally driven by the MAC driver when
configuring for a PHY mode with in-band negotiation.
Check that drv is not NULL before reading from it.
Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/phylink.c')
0 files changed, 0 insertions, 0 deletions