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net: dsa: mv88e6xxx: Hold the mutex while freeing g1 interrupts

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Freeing interrupts requires switch register access to mask the
interrupts. Hence we must hold the register mutex.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2016-11-20 20:14:19 +01:00 committed by David S. Miller
parent 8e757eba07
commit 61f7c3f803
1 changed files with 4 additions and 1 deletions
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5
drivers/net/dsa/mv88e6xxx/chip.c
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@ -3916,8 +3916,11 @@ out_g2_irq:
if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_INT) && chip->irq > 0)
mv88e6xxx_g2_irq_free(chip);
out_g1_irq:
if (chip->irq > 0)
if (chip->irq > 0) {
mutex_lock(&chip->reg_lock);
mv88e6xxx_g1_irq_free(chip);
mutex_unlock(&chip->reg_lock);
}
out:
return err;
}