arch/um: fix kunmap_atomic() call in skas/uaccess.c

kunmap_atomic() takes a pointer to within the page, not the struct page.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/kernel/skas/uaccess.c b/arch/um/kernel/skas/uaccess.c
index e22c969..6966342 100644
--- a/arch/um/kernel/skas/uaccess.c
+++ b/arch/um/kernel/skas/uaccess.c
@@ -81,7 +81,7 @@
 
 	current->thread.fault_catcher = NULL;
 
-	kunmap_atomic(page, KM_UML_USERCOPY);
+	kunmap_atomic((void *)addr, KM_UML_USERCOPY);
 
 	return n;
 }