patch-2.3.46 linux/arch/sparc64/kernel/sys_sunos32.c

• Lines: 32
• Date: Mon Feb 14 15:31:14 2000
• Orig file: v2.3.45/linux/arch/sparc64/kernel/sys_sunos32.c
• Orig date: Tue Feb 1 01:35:43 2000

diff -u --recursive --new-file v2.3.45/linux/arch/sparc64/kernel/sys_sunos32.c linux/arch/sparc64/kernel/sys_sunos32.c
@@ -71,8 +71,10 @@
 	lock_kernel();
 	current->personality |= PER_BSD;
 	if(flags & MAP_NORESERVE) {
-		printk("%s:  unimplemented SunOS MAP_NORESERVE mmap() flag\n",
-		       current->comm);
+		static int cnt;
+		if (cnt++ < 10)
+			printk("%s:  unimplemented SunOS MAP_NORESERVE mmap() flag\n",
+			       current->comm);
 		flags &= ~MAP_NORESERVE;
 	}
 	retval = -EBADF;
@@ -93,15 +95,11 @@
 		}
 	}
 
-	retval = -ENOMEM;
-	if(!(flags & MAP_FIXED) && !addr) {
-		unsigned long attempt = get_unmapped_area(addr, len);
-		if(!attempt || (attempt >= 0xf0000000UL))
-			goto out_putf;
-		addr = (u32) attempt;
-	}
+	retval = -EINVAL;
 	if(!(flags & MAP_FIXED))
 		addr = 0;
+	else if (len > 0xf0000000 || addr > 0xf0000000 - len)
+		goto out_putf;
 	ret_type = flags & _MAP_NEW;
 	flags &= ~_MAP_NEW;