block: Fix null_blk_zoned creation failure with small number of zones

[tomoyo/tomoyo-test1.git] / block / blk-zoned.c

diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index 13ba201..a327bef 100644 (file)
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -378,7 +378,7 @@ static struct blk_zone *blk_alloc_zones(int node, unsigned int *nr_zones)
        struct page *page;
        int order;
 
-       for (order = get_order(size); order > 0; order--) {
+       for (order = get_order(size); order >= 0; order--) {
                page = alloc_pages_node(node, GFP_NOIO | __GFP_ZERO, order);
                if (page) {
                        *nr_zones = min_t(unsigned int, *nr_zones,