devm_ioremap_resource returns a PTR_ERR when it fails, not NULL. OTOH
this is conditionally set to either a PTR_ERR or a valid pointer. Use
!IS_ERR_OR_NULL to check if we can use this.
Fixes: 23a890d493 ("net: mdio: Add the reset function for IPQ MDIO driver")
Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
drivers/net/mdio/mdio-ipq4019.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/mdio/mdio-ipq4019.c b/drivers/net/mdio/mdio-ipq4019.c
index dd3ed2d6430b..859302b0d38c 100644
--- a/drivers/net/mdio/mdio-ipq4019.c
+++ b/drivers/net/mdio/mdio-ipq4019.c
@@ -256,7 +256,7 @@ static int ipq_mdio_reset(struct mii_bus *bus)
/* To indicate CMN_PLL that ethernet_ldo has been ready if platform resource 1
* is specified in the device tree.
*/
- if (priv->eth_ldo_rdy) {
+ if (!IS_ERR_OR_NULL(priv->eth_ldo_rdy)) {
val = readl(priv->eth_ldo_rdy);
val |= BIT(0);
writel(val, priv->eth_ldo_rdy);