patch-2.4.0-test2 linux/drivers/sgi/char/graphics.c

• Lines: 12
• Date: Tue Jun 20 07:52:36 2000
• Orig file: v2.4.0-test1/linux/drivers/sgi/char/graphics.c
• Orig date: Sat Feb 26 22:31:48 2000

diff -u --recursive --new-file v2.4.0-test1/linux/drivers/sgi/char/graphics.c linux/drivers/sgi/char/graphics.c
@@ -150,9 +150,11 @@
 		 * sgi_graphics_mmap
 		 */
 		disable_gconsole ();
+		down(&current->mm->mmap_sem);
 		r = do_mmap (file, (unsigned long)vaddr,
 			     cards[board].g_regs_size, PROT_READ|PROT_WRITE,
 			     MAP_FIXED|MAP_PRIVATE, 0);
+		up(&current->mm->mmap_sem);
 		if (r)
 			return r;
 	}