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mm/memblock.c:memblock_add_range(): if nr_new is 0 just return

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If nr_new is 0 which means there's no region would be added, so just
return to the caller.

Signed-off-by: nimisolo <[email protected]>
Cc: Alexander Kuleshov <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Tang Chen <[email protected]>
Cc: Wei Yang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
nimisolo 2016-07-26 15:24:56 -07:00 • committed by Linus Torvalds
commit ef3cc4db41
1 changed files with 3 additions and 0 deletions
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3
mm/memblock.c
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@ -584,6 +584,9 @@ repeat:
nid, flags);
}
if (!nr_new)
return 0;
/*
* If this was the first round, resize array and repeat for actual
* insertions; otherwise, merge and return.