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| author | Andrew Lunn <andrew@lunn.ch> | 2019-02-23 17:43:57 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-06 13:05:38 +0100 |
| commit | 0e23eeb0fc58f03e06ca026f17c70949d43b15fb (patch) | |
| tree | 66dbb1665c7ccbacb6957ff07f29afb05d2ee3c0 /drivers | |
| parent | 646e5c77b418aa1f9e79c53ea5a8e4ebcd5f9f5d (diff) | |
| download | linux-stable-0e23eeb0fc58f03e06ca026f17c70949d43b15fb.tar.gz linux-stable-0e23eeb0fc58f03e06ca026f17c70949d43b15fb.tar.bz2 linux-stable-0e23eeb0fc58f03e06ca026f17c70949d43b15fb.zip | |
net: dsa: mv88e6xxx: Release lock while requesting IRQ
[ Upstream commit 342a0ee70acbee97fdeb91349420f8744eb291fb ]
There is no need to hold the register lock while requesting the GPIO
interrupt. By not holding it we can also avoid a false positive
lockdep splat.
Reported-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 703e6bdaf0e1..d075f0f7a3de 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -456,10 +456,12 @@ static int mv88e6xxx_g1_irq_setup(struct mv88e6xxx_chip *chip) */ irq_set_lockdep_class(chip->irq, &lock_key, &request_key); + mutex_unlock(&chip->reg_lock); err = request_threaded_irq(chip->irq, NULL, mv88e6xxx_g1_irq_thread_fn, IRQF_ONESHOT, dev_name(chip->dev), chip); + mutex_lock(&chip->reg_lock); if (err) mv88e6xxx_g1_irq_free_common(chip); |