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Merge branch 'pm-sleep' 

* pm-sleep:
  PM / hibernate: Avoid overflow in hibernate_preallocate_memory()
This commit is contained in:
Rafael J. Wysocki 2013-11-07 19:26:55 +01:00
parent 15d4cb9013 fd432b9f8c
commit feba070dba
1 changed files with 5 additions and 1 deletions
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6
kernel/power/snapshot.c
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@ -1402,7 +1402,11 @@ int hibernate_preallocate_memory(void)
* highmem and non-highmem zones separately. * highmem and non-highmem zones separately.
*/ */
pages_highmem = preallocate_image_highmem(highmem / 2); pages_highmem = preallocate_image_highmem(highmem / 2);
alloc = (count - max_size) - pages_highmem; alloc = count - max_size;
if (alloc > pages_highmem)
alloc -= pages_highmem;
else
alloc = 0;
pages = preallocate_image_memory(alloc, avail_normal); pages = preallocate_image_memory(alloc, avail_normal);
if (pages < alloc) { if (pages < alloc) {
/* We have exhausted non-highmem pages, try highmem. */ /* We have exhausted non-highmem pages, try highmem. */