can: c_can: Handle state change correctly
If the allocation of an error skb fails, the state change handling returns w/o doing any work. That leaves the interface in a wreckaged state as the internal status is wrong. Split the interface handling and the skb handling. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Tested-by: NAlexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
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