can: rx-offload: can_rx_offload_irq_offload_timestamp(): continue on error
In case of a resource shortage, i.e. the rx_offload queue will overflow or a skb fails to be allocated (due to OOM), can_rx_offload_offload_one() will call mailbox_read() to discard the mailbox and return an ERR_PTR. However can_rx_offload_irq_offload_timestamp() bails out in the error case. In case of a resource shortage all mailboxes should be discarded, to avoid an IRQ storm and give the system some time to recover. Since can_rx_offload_irq_offload_timestamp() is typically called from a while loop, all message will eventually be discarded. So let's continue on error instead to discard them directly. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
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