diff options
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/serdes.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index 38c0da2492c0..7eb7ed68c91d 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -186,14 +186,19 @@ static void mv88e6352_serdes_irq_link(struct mv88e6xxx_chip *chip, int port) struct dsa_switch *ds = chip->ds; u16 status; bool up; + int err; - mv88e6352_serdes_read(chip, MII_BMSR, &status); + err = mv88e6352_serdes_read(chip, MII_BMSR, &status); + if (err) + return; /* Status must be read twice in order to give the current link * status. Otherwise the change in link status since the last * read of the register is returned. */ - mv88e6352_serdes_read(chip, MII_BMSR, &status); + err = mv88e6352_serdes_read(chip, MII_BMSR, &status); + if (err) + return; up = status & BMSR_LSTATUS; |