Enhance the ksz_switch_macaddr_get() function to handle errors that may
occur during the call to ksz_write8(). Specifically, this update checks
the return value of ksz_write8(), which may fail if regmap ranges
validation is not passed and returns the error code.
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Reviewed-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
---
drivers/net/dsa/microchip/ksz_common.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 7b05de6fe987..79052a54880c 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -3612,7 +3612,7 @@ int ksz_switch_macaddr_get(struct dsa_switch *ds, int port,
struct ksz_switch_macaddr *switch_macaddr;
struct ksz_device *dev = ds->priv;
const u16 *regs = dev->info->regs;
- int i;
+ int i, ret;
/* Make sure concurrent MAC address changes are blocked */
ASSERT_RTNL();
@@ -3639,8 +3639,11 @@ int ksz_switch_macaddr_get(struct dsa_switch *ds, int port,
dev->switch_macaddr = switch_macaddr;
/* Program the switch MAC address to hardware */
- for (i = 0; i < ETH_ALEN; i++)
- ksz_write8(dev, regs[REG_SW_MAC_ADDR] + i, addr[i]);
+ for (i = 0; i < ETH_ALEN; i++) {
+ ret = ksz_write8(dev, regs[REG_SW_MAC_ADDR] + i, addr[i]);
+ if (ret)
+ return ret;
+ }
return 0;
}
--
2.39.2
