patch-2.1.89 linux/arch/i386/kernel/sys_i386.c

• Lines: 20
• Date: Fri Feb 27 15:34:40 1998
• Orig file: v2.1.88/linux/arch/i386/kernel/sys_i386.c
• Orig date: Mon Dec 8 14:58:44 1997

diff -u --recursive --new-file v2.1.88/linux/arch/i386/kernel/sys_i386.c linux/arch/i386/kernel/sys_i386.c
@@ -65,14 +65,17 @@
 
 	lock_kernel();
 	if (copy_from_user(&a, arg, sizeof(a)))
-			goto out;
+		goto out;
 	if (!(a.flags & MAP_ANONYMOUS)) {
 		error = -EBADF;
-		if (a.fd >= NR_OPEN || !(file = current->files->fd[a.fd]))
+		file = fget(a.fd);
+		if (!file)
 			goto out;
 	}
 	a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
 	error = do_mmap(file, a.addr, a.len, a.prot, a.flags, a.offset);
+	if (file)
+		fput(file);
 out:
 	unlock_kernel();
 	return error;