[PATCH] mm/memblock: If nr_new is 0 just return

From	nimisolo <nimisolo@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH] mm/memblock: If nr_new is 0 just return
Date	2016-01-09 12:40 +0100
Message-ID	<qP02e-4Xn-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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 <nimisolo@gmail.com>
---
 mm/memblock.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/memblock.c b/mm/memblock.c
index d300f13..9a30077 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -588,6 +588,9 @@ 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.
-- 
2.5.0

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[PATCH] mm/memblock: If nr_new is 0 just return nimisolo <nimisolo@gmail.com> - 2016-01-09 12:40 +0100
  Re: [PATCH] mm/memblock: If nr_new is 0 just return Andrew Morton <akpm@linux-foundation.org> - 2016-01-12 23:50 +0100

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