From: Tony Lindgren <tony@atomide.com>
Date: Thu, 3 Sep 2015 17:34:30 +0000 (-0700)
Subject: pinctrl: core: Warn about NULL gpio_chip in pinctrl_ready_for_gpio_range()
X-Git-Tag: omap-for-v4.3/fixes-rc5~131^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=942cde724075f840ded89390b10dce1a47a4d712;p=pandora-kernel.git

pinctrl: core: Warn about NULL gpio_chip in pinctrl_ready_for_gpio_range()

If the gpio driver is confused about the numbers for gpio-ranges,
pinctrl_ready_for_gpio_range() may get called with invalid GPIO
causing a NULL pointer exception. Let's instead provide a warning
that allows fixing the problem and return with error.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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