patch-2.1.127 linux/arch/sparc/kernel/sys_sparc.c

• Lines: 22
• Date: Tue Oct 27 09:52:20 1998
• Orig file: v2.1.126/linux/arch/sparc/kernel/sys_sparc.c
• Orig date: Mon Oct 5 13:13:37 1998

diff -u --recursive --new-file v2.1.126/linux/arch/sparc/kernel/sys_sparc.c linux/arch/sparc/kernel/sys_sparc.c
@@ -1,4 +1,4 @@
-/* $Id: sys_sparc.c,v 1.48 1998/09/07 09:19:34 davem Exp $
+/* $Id: sys_sparc.c,v 1.49 1998/10/11 06:57:53 davem Exp $
  * linux/arch/sparc/kernel/sys_sparc.c
  *
  * This file contains various random system calls that
@@ -181,6 +181,7 @@
 	struct file * file = NULL;
 	unsigned long retval = -EBADF;
 
+	down(&current->mm->mmap_sem);
 	lock_kernel();
 	if (!(flags & MAP_ANONYMOUS)) {
 		file = fget(fd);
@@ -214,6 +215,7 @@
 		fput(file);
 out:
 	unlock_kernel();
+	up(&current->mm->mmap_sem);
 	return retval;
 }