From: Wolfram Sang <w.sang@pengutronix.de>
Date: Thu, 13 Jan 2011 01:00:23 +0000 (-0800)
Subject: gpiolib: annotate gpio-intialization with __must_check
X-Git-Tag: v2.6.38-rc1~326
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0fdae42d361bbb431ca0ab0efed5126a94821177;p=pandora-kernel.git

gpiolib: annotate gpio-intialization with __must_check

Because GPIOs can have crucial functions especially in embedded systems,
we are better safe than sorry regarding their configuration.  For
gpio_request, the documentation is simply enforced: <quote>"The return
value of gpio_request() must be checked."</quote> For gpio_direction_* and
gpio_request_*, we now act accordingly.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Greg KH <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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