[PATCH] swsusp bugfixes: fix memory leak

This fixes memory leak when we are low on memory during suspend.  Ouch and
nr_needed_pages is only used twice, and only written :-(.  I guess that can
wait for 2.6.10.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/power/swsusp.c

@@ -786,12 +786,13 @@ static int swsusp_alloc(void)
 
 int suspend_prepare_image(void)
 {
-	unsigned int nr_needed_pages = 0;
+	unsigned int nr_needed_pages;
 	int error;
 
 	pr_debug("swsusp: critical section: \n");
 	if (save_highmem()) {
 		printk(KERN_CRIT "Suspend machine: Not enough free pages for highmem\n");
+		restore_highmem();
 		return -ENOMEM;
 	}