From b32ca44a88def4bf92626d8777494c6f14638c42 Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Tue, 26 Sep 2017 14:57:21 -0400 Subject: [PATCH] net: dsa: mv88e6xxx: lock mutex when freeing IRQs mv88e6xxx_g2_irq_free locks the registers mutex, but not mv88e6xxx_g1_irq_free, which results in a stack trace from assert_reg_lock when unloading the mv88e6xxx module. Fix this. Fixes: 3460a5770ce9 ("net: dsa: mv88e6xxx: Mask g1 interrupts and free interrupt") Signed-off-by: Vivien Didelot Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/chip.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 674dab71d71c..d74c7335c512 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -3951,7 +3951,9 @@ static void mv88e6xxx_remove(struct mdio_device *mdiodev) if (chip->irq > 0) { if (chip->info->g2_irqs > 0) mv88e6xxx_g2_irq_free(chip); + mutex_lock(&chip->reg_lock); mv88e6xxx_g1_irq_free(chip); + mutex_unlock(&chip->reg_lock); } } -- 2.34.1