[PATCH] mm/memblock: check memblock_reserve on fail in memblock_virt_alloc_internal

[Alexander Kuleshov]

This patch adds a check for memblock_reserve() call in the
memblock_virt_alloc_internal() function, because memblock_reserve()
can return -errno on fail.

Signed-off-by: Alexander Kuleshov <kuleshovmail@xxxxxxxxx>
---
 mm/memblock.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index 87108e7..73427546 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1298,7 +1298,9 @@ again:
 
 	return NULL;
 done:
-	memblock_reserve(alloc, size);
+	if (memblock_reserve(alloc, size))
+		return NULL;
+
 	ptr = phys_to_virt(alloc);
 	memset(ptr, 0, size);
 
-- 
2.5.0

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