提交 e7a7f972 编写于 作者: A Alexandre Belloni 提交者: Linus Walleij

gpio: pca953x: fix irq_domain_add_simple usage

We actually have to pass chip as the host_data parameter of
irq_domain_add_simple() as later on, it is used to initialize chip_data
in pca953x_gpio_irq_map(). Failing to do so is leading to a NULL pointer
dereference after calling irq_data_get_irq_chip_data() in
pca953x_irq_mask(), pca953x_irq_unmask(), pca953x_irq_bus_lock(),
pca953x_irq_bus_sync_unlock() and pca953x_irq_set_type().

Fixes regression introduced by commit
0e8f2fda (gpio: pca953x: use simple
irqdomain)
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
上级 31880c37
......@@ -575,7 +575,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
chip->gpio_chip.ngpio,
irq_base,
&pca953x_irq_simple_ops,
NULL);
chip);
if (!chip->domain)
return -ENODEV;
......
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