[PATCH] Fix IS_ERR Threshold Value
authorRalf Baechle <ralf@linux-mips.org>
Sat, 1 Jul 2006 11:36:25 +0000 (04:36 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Sat, 1 Jul 2006 16:56:03 +0000 (09:56 -0700)
 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>
include/linux/err.h

index ff71d2af5da33ac711da7f64957d8d93bad4f91f..cd3b367f7445e5aa0f25ddbf2f0b96c44a19b94f 100644 (file)
@@ -13,7 +13,9 @@
  * This should be a per-architecture thing, to allow different
  * 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)
 {