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can: c_can: fix segfault during rmmod

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This patch fixes an oops which occurs during unloading the driver.
unregister_c_can_dev() is doing c_can/d_can module interrupts disable, which
requires module clock enable. c_can/d_can interrupts enable/disable is handled
properly in c_can_start and c_can_stop, so removing from
unregister_c_can_dev().

The problem was triggered by adding runtime PM support to the c_can driver by
this commit:

4cdd34b can: c_can: Add runtime PM support to Bosch C_CAN/D_CAN controller

Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
AnilKumar Ch 2012-09-27 17:54:58 +05:30 committed by Marc Kleine-Budde
parent 842b08bbee
commit c523530ce1
1 changed files with 0 additions and 3 deletions
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3
drivers/net/can/c_can/c_can.c
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@ -1265,9 +1265,6 @@ void unregister_c_can_dev(struct net_device *dev)
{ {
struct c_can_priv *priv = netdev_priv(dev); struct c_can_priv *priv = netdev_priv(dev);
/* disable all interrupts */
c_can_enable_all_interrupts(priv, DISABLE_ALL_INTERRUPTS);
unregister_candev(dev); unregister_candev(dev);
c_can_pm_runtime_disable(priv); c_can_pm_runtime_disable(priv);