pinctrl: freescale: imx: fix bogus check of of_iomap() return value

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commit 9a4f424531 upstream.

On error path of_iomap() returns NULL, hence IS_ERR() check is invalid
and may cause a NULL pointer dereference, the change fixes this
problem.

While we are here invert a device node check to simplify the code.

Fixes: 26d8cde526 ("pinctrl: freescale: imx: add shared input select reg support")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Vladimir Zapolskiy 2016-03-09 02:45:36 +02:00 • committed by Greg Kroah-Hartman

parent e7c6abc464

commit 2e638de516

1 changed files with 8 additions and 9 deletions

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drivers/pinctrl/freescale/pinctrl-imx.c

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