Sergei Miroshnichenko 9abefcb1aa can: dev: fix deadlock reported after bus-off ...

A timer was used to restart after the bus-off state, leading to a
relatively large can_restart() executed in an interrupt context,
which in turn sets up pinctrl. When this happens during system boot,
there is a high probability of grabbing the pinctrl_list_mutex,
which is locked already by the probe() of other device, making the
kernel suspect a deadlock condition [1].

To resolve this issue, the restart_timer is replaced by a delayed
work.

[1] https://github.com/victronenergy/venus/issues/24

Signed-off-by: Sergei Miroshnichenko <[email protected]>
Cc: linux-stable <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>

2016-09-22 10:01:21 +02:00

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platform

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core.h

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dev.h

can: dev: fix deadlock reported after bus-off

2016-09-22 10:01:21 +02:00

led.h

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skb.h

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