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gpio-sta2x11: don't use pdata if null 

If there is no platform data available, the driver shouldn't use the
pointer or it will oops.  Since things will mostly work nonetheless,
(the BIOS may have set up the pins properly), I'd better not fail the
probe even in this case.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Alessandro Rubini 2012-05-27 22:55:41 +02:00 committed by Linus Walleij
parent 6887a4131d
commit 2e2070c85a
1 changed files with 3 additions and 2 deletions
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5
drivers/gpio/gpio-sta2x11.c
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@ -383,8 +383,9 @@ static int __devinit gsta_probe(struct platform_device *dev)
}
spin_lock_init(&chip->lock);
gsta_gpio_setup(chip);
for (i = 0; i < GSTA_NR_GPIO; i++)
gsta_set_config(chip, i, gpio_pdata->pinconfig[i]);
if (gpio_pdata)
for (i = 0; i < GSTA_NR_GPIO; i++)
gsta_set_config(chip, i, gpio_pdata->pinconfig[i]);
/* 384 was used in previous code: be compatible for other drivers */
err = irq_alloc_descs(-1, 384, GSTA_NR_GPIO, NUMA_NO_NODE);