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[PATCH] Fix IS_ERR Threshold Value

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o Raise the maximum error number in IS_ERR_VALUE to 4095.
 o Make that number available as a new constant MAX_ERRNO.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ralf Baechle 2006-07-01 04:36:25 -07:00 committed by Linus Torvalds
parent 10e5dce07e
commit fa79837d5b
1 changed files with 3 additions and 1 deletions
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4
include/linux/err.h
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@ -13,7 +13,9 @@
* This should be a per-architecture thing, to allow different * This should be a per-architecture thing, to allow different
* error and pointer decisions. * error and pointer decisions.
*/ */
#define IS_ERR_VALUE(x) unlikely((x) > (unsigned long)-1000L) #define MAX_ERRNO 4095
#define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
static inline void *ERR_PTR(long error) static inline void *ERR_PTR(long error)
{ {