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-rw-r--r--fs/hfsplus/btree.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index a9b9e872e29a..90ebab753d30 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -10,6 +10,7 @@
#include <linux/slab.h>
#include <linux/pagemap.h>
+#include <linux/log2.h>
#include "hfsplus_fs.h"
#include "hfsplus_raw.h"
@@ -69,7 +70,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
}
size = tree->node_size;
- if (!size || size & (size - 1))
+ if (!is_power_of_2(size))
goto fail_page;
if (!tree->node_count)
goto fail_page;