diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-06-17 00:06:45 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-18 14:03:08 +0200 |
| commit | a44735f421b44724d52117358573f8ded473ecc7 (patch) | |
| tree | 8f539796b31845a82a4b2bb3f1318a62ee2f0339 | |
| parent | gpio: gpio-mxc: Fix race in installing chained IRQ handler (diff) | |
| download | linux-a44735f421b44724d52117358573f8ded473ecc7.tar.xz linux-a44735f421b44724d52117358573f8ded473ecc7.zip | |
gpio: gpio-mxs: 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/E1Z4z0H-0002Sf-P9@rmk-PC.arm.linux.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | drivers/gpio/gpio-mxs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c index 84cbda6acdda..eac872748ee7 100644 --- a/drivers/gpio/gpio-mxs.c +++ b/drivers/gpio/gpio-mxs.c @@ -320,8 +320,8 @@ static int mxs_gpio_probe(struct platform_device *pdev) mxs_gpio_init_gc(port, irq_base); /* setup one handler for each entry */ - irq_set_chained_handler(port->irq, mxs_gpio_irq_handler); - irq_set_handler_data(port->irq, port); + irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler, + port); err = bgpio_init(&port->bgc, &pdev->dev, 4, port->base + PINCTRL_DIN(port), |