diff options
| author |   Andrew Lunn <andrew@lunn.ch> | 2017-12-02 18:11:04 +0100 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2017-12-28 12:26:35 +0100 |
| commit | 39c3fd58952d7599d367c84c1330b785d91d6088 (patch) | |
| tree | 156853f464f0148928514478abf3aeca86e30397 /drivers/gpio/gpio-tegra.c | |
| parent | Merge tag 'hwmon-for-linus-v4.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging (diff) | |
| download | linux-dev-39c3fd58952d7599d367c84c1330b785d91d6088.tar.xz linux-dev-39c3fd58952d7599d367c84c1330b785d91d6088.zip | |
kernel/irq: Extend lockdep class for request mutex
The IRQ code already has support for lockdep class for the lock mutex
in an interrupt descriptor. Extend this to add a second class for the
request mutex in the descriptor. Not having a class is resulting in
false positive splats in some code paths.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: linus.walleij@linaro.org
Cc: grygorii.strashko@ti.com
Cc: f.fainelli@gmail.com
Link: https://lkml.kernel.org/r/1512234664-21555-1-git-send-email-andrew@lunn.ch
Diffstat (limited to 'drivers/gpio/gpio-tegra.c')
| -rw-r--r-- | drivers/gpio/gpio-tegra.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 8db47f671708..02fa8fe2292a 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -565,6 +565,7 @@ static const struct dev_pm_ops tegra_gpio_pm_ops = { * than their parents, so it won't report false recursion. */ static struct lock_class_key gpio_lock_class; +static struct lock_class_key gpio_request_class; static int tegra_gpio_probe(struct platform_device *pdev) { @@ -670,7 +671,8 @@ static int tegra_gpio_probe(struct platform_device *pdev) bank = &tgi->bank_info[GPIO_BANK(gpio)]; - irq_set_lockdep_class(irq, &gpio_lock_class); + irq_set_lockdep_class(irq, &gpio_lock_class, + &gpio_request_class); irq_set_chip_data(irq, bank); irq_set_chip_and_handler(irq, &tgi->ic, handle_simple_irq); } |