diff options
| author | nimisolo <nimisolo@gmail.com> | 2016-07-27 00:24:56 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-27 01:19:19 +0200 |
| commit | ef3cc4db415e0cee73ea37ac6d79821d77f15f1d (patch) | |
| tree | 329abdce8dd6bc2b90cb14b35017d95ae6f8871c /mm/memblock.c | |
| parent | mm, memcg: use consistent gfp flags during readahead (diff) | |
| download | linux-ef3cc4db415e0cee73ea37ac6d79821d77f15f1d.tar.xz linux-ef3cc4db415e0cee73ea37ac6d79821d77f15f1d.zip | |
mm/memblock.c:memblock_add_range(): if nr_new is 0 just return
If nr_new is 0 which means there's no region would be added, so just
return to the caller.
Signed-off-by: nimisolo <nimisolo@gmail.com>
Cc: Alexander Kuleshov <kuleshovmail@gmail.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memblock.c')
| -rw-r--r-- | mm/memblock.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index ac1248933b31..ca099159b45a 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -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. |