X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fpowerpc%2Fkernel%2Fsyscalls.c;h=c04832c4a02e3965834a48adbaad9450e76ef378;hb=3fde80e94c2bbffbb13f5faa3340cf438440ebea;hp=e722a4eeb5d0fc4a0a8150900b378fe38969e2bb;hpb=e43fe686e48835ca027559a068bbe0b6d264a254;p=linux-2.6-omap-h63xx.git

diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index e722a4eeb5d..c04832c4a02 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -136,23 +136,6 @@ int sys_ipc(uint call, int first, unsigned long second, long third,
 	return ret;
 }
 
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-int sys_pipe(int __user *fildes)
-{
-	int fd[2];
-	int error;
-
-	error = do_pipe(fd);
-	if (!error) {
-		if (copy_to_user(fildes, fd, 2*sizeof(int)))
-			error = -EFAULT;
-	}
-	return error;
-}
-
 static inline unsigned long do_mmap2(unsigned long addr, size_t len,
 			unsigned long prot, unsigned long flags,
 			unsigned long fd, unsigned long off, int shift)
@@ -160,6 +143,9 @@ static inline unsigned long do_mmap2(unsigned long addr, size_t len,
 	struct file * file = NULL;
 	unsigned long ret = -EINVAL;
 
+	if (!arch_validate_prot(prot))
+		goto out;
+
 	if (shift) {
 		if (off & ((1 << shift) - 1))
 			goto out;