can: c_can_pci: fix null-pointer-deref in c_can_start() - set device pointer

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commit c97c52be78 upstream.

The priv->device pointer for c_can_pci is never set, but it is used
without a NULL check in c_can_start(). Setting it in c_can_pci_probe()
like c_can_plat_probe() prevents c_can_pci.ko from crashing, with and
without CONFIG_PM.

This might also cause the pm_runtime_*() functions in c_can.c to
actually be executed for c_can_pci devices - they are the only other
place where priv->device is used, but they all contain a null check.

Signed-off-by: Einar Jón <tolvupostur@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

...

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Einar Jón 2016-08-12 13:50:41 +02:00 • committed by Ben Hutchings

parent 9a7ed2f246

commit dc4392e9e8

1 changed files with 1 additions and 0 deletions

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drivers/net/can/c_can/c_can_pci.c

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