summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/smsc/smc91x.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/smsc/smc91x.c')
-rw-r--r--drivers/net/ethernet/smsc/smc91x.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 726b80f45906..503a3b6dce91 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -2275,6 +2275,13 @@ static int smc_drv_probe(struct platform_device *pdev)
if (pd) {
memcpy(&lp->cfg, pd, sizeof(lp->cfg));
lp->io_shift = SMC91X_IO_SHIFT(lp->cfg.flags);
+
+ if (!SMC_8BIT(lp) && !SMC_16BIT(lp)) {
+ dev_err(&pdev->dev,
+ "at least one of 8-bit or 16-bit access support is required.\n");
+ ret = -ENXIO;
+ goto out_free_netdev;
+ }
}
#if IS_BUILTIN(CONFIG_OF)