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Fix ZERO_OR_NULL_PTR(ZERO_SIZE_PTR)
author
Roland Dreier
<rdreier@cisco.com>
Fri, 20 Jul 2007 19:13:20 +0000
(12:13 -0700)
committer
Linus Torvalds
<torvalds@woody.linux-foundation.org>
Fri, 20 Jul 2007 19:33:44 +0000
(12:33 -0700)
The comparison with ZERO_SIZE_PTR in ZERO_OR_NULL_PTR() needs to be <=
(not just <) so that ZERO_OR_NULL_PTR(ZERO_SIZE_PTR) is 1.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
[ Duh! - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/slab.h
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diff --git
a/include/linux/slab.h
b/include/linux/slab.h
index
7d0ecc1
..
d859354
100644
(file)
--- a/
include/linux/slab.h
+++ b/
include/linux/slab.h
@@
-40,7
+40,7
@@
*/
#define ZERO_SIZE_PTR ((void *)16)
-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) < \
+#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <
=
\
(unsigned long)ZERO_SIZE_PTR)
/*