diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-06-16 23:06:50 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-18 14:03:08 +0200 |
| commit | e88d251d6a4fb719f9f667a397cf5d755121e551 (patch) | |
| tree | 3b72e3a158d86aaa5faa84418fa000f52c3d143a | |
| parent | a44735f421b44724d52117358573f8ded473ecc7 (diff) | |
| download | blackbird-op-linux-e88d251d6a4fb719f9f667a397cf5d755121e551.tar.gz blackbird-op-linux-e88d251d6a4fb719f9f667a397cf5d755121e551.zip | |
gpio: gpio-tegra: Fix race in installing chained IRQ handler
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/E1Z4z0M-0002Sl-Ti@rmk-PC.arm.linux.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | drivers/gpio/gpio-tegra.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 1741981d53c8..56dcc8ed98de 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -515,8 +515,8 @@ static int tegra_gpio_probe(struct platform_device *pdev) for (i = 0; i < tegra_gpio_bank_count; i++) { bank = &tegra_gpio_banks[i]; - irq_set_chained_handler(bank->irq, tegra_gpio_irq_handler); - irq_set_handler_data(bank->irq, bank); + irq_set_chained_handler_and_data(bank->irq, + tegra_gpio_irq_handler, bank); for (j = 0; j < 4; j++) spin_lock_init(&bank->lvl_lock[j]); |
