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| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2013-04-03 19:40:14 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-04-11 19:01:19 +0200 |
| commit | e7a7f972f9120a7985d38a2be8c540047c94392f (patch) | |
| tree | 7b054a5e516a0ea9fbaa701ecf74878c92a1ea3c /drivers/gpio/gpio-pca953x.c | |
| parent | 31880c37c11e28cb81c70757e38392b42e695dc6 (diff) | |
| download | op-kernel-dev-e7a7f972f9120a7985d38a2be8c540047c94392f.zip op-kernel-dev-e7a7f972f9120a7985d38a2be8c540047c94392f.tar.gz | |
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
0e8f2fdacf1d44651aa7e57063c76142d1f4988b (gpio: pca953x: use simple
irqdomain)
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-pca953x.c')
| -rw-r--r-- | drivers/gpio/gpio-pca953x.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 2405946..9391cf1 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -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; |
