From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 22 Mar 2011 23:34:05 +0000 (-0700)
Subject: include/linux/err.h: add a function to cast error-pointers to a return value
X-Git-Tag: v2.6.39-rc1~267
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fa9ee9c4b9885dfdf8eccac19b8b4fc8a7c53288;p=pandora-kernel.git

include/linux/err.h: add a function to cast error-pointers to a return value

PTR_RET() can be used if you have an error-pointer and are only interested
in the eventual error value, but not the pointer.  Yields the usual 0 for
no error, -ESOMETHING otherwise.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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