gpio: davinci: Fix possible NULL pointer deference

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This fixes a possible NULL pointer deference in the function,
davinci_gpio_probe due to the function, gpio2regs being able
to return a NULL pointer if it rans to get the registers for
the gpio devices on a davinci board. Furthermore if this does
arise return -ENXIO to signal callers that this case has arisen
and avoiding setting the regs or other pointer values on the

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Nicholas Krause 2016-02-02 19:17:59 -05:00 • committed by Linus Walleij

parent ed07247dbf

commit d6f434e858

1 changed files with 2 additions and 0 deletions

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drivers/gpio/gpio-davinci.c

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