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(parent: 1b627d5) | patch
kfifo: disable __kfifo_must_check_helper()
authorAndrew Morton <akpm@linux-foundation.org>
Tue, 26 Oct 2010 21:21:19 +0000 (14:21 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 26 Oct 2010 23:52:04 +0000 (16:52 -0700)
commit52c5171214ff3327961d0ce0db7e8d2ce55004fd
tree705e7f51b39f4e8af767cc2a8df19e9e78f15000tree | snapshot (tar.gz zip)
parent1b627d5771312c92404b66f0a0b16f66036dd2e1commit | diff
kfifo: disable __kfifo_must_check_helper()

This helper is wrong: it coerces signed values into unsigned ones, so code
such as

if (kfifo_alloc(...) < 0) {
error
}

will fail to detect the error.

So let's disable __kfifo_must_check_helper() for 2.6.36.

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Stefani Seibold <stefani@seibold.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/kfifo.h diff | blob | blame | history