[PATCH] convert that currently tests _NSIG directly to use valid_signal()

Convert most of the current code that uses _NSIG directly to instead use
valid_signal().  This avoids gcc -W warnings and off-by-one errors.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 5f080cf04b33..80a76e2ad732 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -19,6 +19,7 @@
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/security.h>
+#include <linux/signal.h>
 
 #include <asm/asi.h>
 #include <asm/pgtable.h>
@@ -559,7 +560,7 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
                 addr = 1;
 
         case PTRACE_CONT: { /* restart after signal. */
-                if (data > _NSIG) {
+                if (!valid_signal(data)) {
                         pt_error_return(regs, EIO);
                         goto out_tsk;
                 }