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(parent: d404ab0) | patch
include/linux/err.h: add a function to cast error-pointers to a return value
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tue, 22 Mar 2011 23:34:05 +0000 (16:34 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 23 Mar 2011 00:44:11 +0000 (17:44 -0700)
commitfa9ee9c4b9885dfdf8eccac19b8b4fc8a7c53288
tree7fa3808a38b2d8f161d750156804e643288e4304tree
parentd404ab0a1133e95557bb7deab2a49b348dfeba85commit | diff
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>
include/linux/err.h diff | blob | history
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