net: dsa: mv88e6xxx: Fix unused variable warning by using variable
_mv88e6xxx_stats_wait() did not check the return value from
mv88e6xxx_g1_read(), so the compiler complained about set but unused
err.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 062b912..c015212 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -787,6 +787,9 @@ static int _mv88e6xxx_stats_wait(struct mv88e6xxx_chip *chip)
for (i = 0; i < 10; i++) {
err = mv88e6xxx_g1_read(chip, GLOBAL_STATS_OP, &val);
+ if (err)
+ return err;
+
if ((val & GLOBAL_STATS_OP_BUSY) == 0)
return 0;
}