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net: dsa: mv88e6xxx: Fix unused variable warning by using variable

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_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>
This commit is contained in:
Andrew Lunn 2016-11-21 23:26:56 +01:00 committed by David S. Miller
parent b4308f046a
commit 096eea0ff8
1 changed files with 3 additions and 0 deletions
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3
drivers/net/dsa/mv88e6xxx/chip.c
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@ -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;
}