Instead of silently using a wrong value, check if drvdata is defined
before use.
Print a warning if there is no drvdata found.
Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
---
drivers/net/designware.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index ec20da09b388..862ee2f0463e 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -434,7 +434,11 @@ struct dw_eth_dev *dwc_drv_probe(struct device_d *dev)
if (ret)
return ERR_PTR(ret);
- priv->enh_desc = drvdata->enh_desc;
+ if (drvdata && drvdata->enh_desc)
+ priv->enh_desc = drvdata->enh_desc;
+ else
+ dev_warn(dev, "No drvdata specified\n");
+
if (pdata) {
priv->phy_addr = pdata->phy_addr;
--
2.11.0
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