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linux-next/drivers/net/can/c_can
Thomas Gleixner bed11db3d4 can: c_can: Fix startup logic
c_can_start() enables interrupts way too early. The first enabling
happens when setting the control mode in c_can_chip_config() and then
again at the end of the function.

But that happens before napi_enable() and that means that an interrupt
which comes in will disable interrupts again and call napi_schedule,
which ignores the request and the later napi_enable() is not making
thinks work either. So the interface is up with all device interrupts
disabled.

Move the device interrupt after napi_enable() and add it to the other
callsites of c_can_start() in c_can_set_mode() and c_can_power_up()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-04-24 22:08:55 +02:00
..
c_can_pci.c can: c_can_pci: Set the type of the IP core 2014-04-24 22:08:55 +02:00
c_can_platform.c can: c_can: Fix hardware raminit function 2014-04-01 11:54:57 +02:00
c_can.c can: c_can: Fix startup logic 2014-04-24 22:08:55 +02:00
c_can.h can: c_can: Store dlc private 2014-04-01 11:55:01 +02:00
Kconfig can: Kconfig: convert 'depends on CAN_DEV' into 'if CAN_DEV...endif' block 2013-01-26 16:58:58 +01:00
Makefile c_can_pci: generic module for C_CAN/D_CAN on PCI 2012-06-19 21:22:28 +02:00