| Message ID | a9c261800dbb662c9c703544817dc103e2937472.1500381146.git.mirq-linux@rere.qmqm.pl |
|---|---|
| State | Deferred |
| Headers | show |
On Tue, Jul 18, 2017 at 2:35 PM, Michał Mirosław <mirq-linux@rere.qmqm.pl> wrote: > When more than one GPIO IRQs are triggered simultaneously, > tegra_gpio_irq_handler() called chained_irq_exit() multiple > times for one chained_irq_enter(). > > Fixes: 3c92db9ac0ca3eee8e46e2424b6c074e2e394ad9 > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Patch applied. I also changed this variable to a bool. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 88529d3c06c9..4bd99a38cae8 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -384,7 +384,7 @@ static void tegra_gpio_irq_handler(struct irq_desc *desc) * before executing the handler so that we don't * miss edges */ - if (lvl & (0x100 << pin)) { + if (!unmasked && lvl & (0x100 << pin)) { unmasked = 1; chained_irq_exit(chip, desc); }
When more than one GPIO IRQs are triggered simultaneously, tegra_gpio_irq_handler() called chained_irq_exit() multiple times for one chained_irq_enter(). Fixes: 3c92db9ac0ca3eee8e46e2424b6c074e2e394ad9 Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> --- drivers/gpio/gpio-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)