drivers: net: cpsw: ndev: fix accessing to suspended device

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The CPSW might be suspended by RPM if all ethX interfaces are down,
but it still could be accesible through net_device_ops interfce. In
this case net_device_ops operations requiring registers access will
cause L3 errors and CPSW crash.

Hence, fix it by adding RPM get/put calls in net_device_ops callbacks
which need to access CPSW registers: .ndo_set_mac_address(),
.ndo_vlan_rx_add_vid(), .ndo_vlan_rx_kill_vid().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Grygorii Strashko 2016-06-24 21:23:45 +03:00 • committed by David S. Miller

parent 7898b1daf0

commit a6c5d14f51

1 changed files with 30 additions and 3 deletions

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drivers/net/ethernet/ti/cpsw.c

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