can: kvaser_pciefd: Skip redundant NULL pointer check in ISR

This check is already done at the creation of the net devices in
kvaser_pciefd_setup_can_ctrls called from kvaser_pciefd_probe.

If it fails, the driver won't load, so there should be no need to
repeat the check inside the ISR. The number of channels is read
from the FPGA and should be trusted.

Signed-off-by: Martin Jocic <martin.jocic@kvaser.com>
Link: https://lore.kernel.org/all/20240614151524.2718287-3-martin.jocic@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index fa205091aafef83d7e02b5bfaf3c158f9ee1c4b9..4832a93d34de5038c0ffbb46cb5fe1df6ed4c1c2 100644 (file)
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -1701,12 +1701,6 @@ static irqreturn_t kvaser_pciefd_irq_handler(int irq, void *dev)
                kvaser_pciefd_receive_irq(pcie);
 
        for (i = 0; i < pcie->nr_channels; i++) {
-               if (!pcie->can[i]) {
-                       dev_err(&pcie->pci->dev,
-                               "IRQ mask points to unallocated controller\n");
-                       break;
-               }
-
                /* Check that mask matches channel (i) IRQ mask */
                if (board_irq & irq_mask->kcan_tx[i])
                        kvaser_pciefd_transmit_irq(pcie->can[i]);