mm: zbud: fix condition check on allocation size

[platform/adaptation/renesas_rcar/renesas_kernel.git] / mm / zbud.c

diff --git a/mm/zbud.c b/mm/zbud.c
index 9bb4710..ad1e781 100644 (file)
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -257,7 +257,7 @@ int zbud_alloc(struct zbud_pool *pool, int size, gfp_t gfp,
 
        if (size <= 0 || gfp & __GFP_HIGHMEM)
                return -EINVAL;
-       if (size > PAGE_SIZE - ZHDR_SIZE_ALIGNED)
+       if (size > PAGE_SIZE - ZHDR_SIZE_ALIGNED - CHUNK_SIZE)
                return -ENOSPC;
        chunks = size_to_chunks(size);
        spin_lock(&pool->lock);