diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index 3fda92358e22..f9869d62b850 100644
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c
@@ -293,6 +293,7 @@ static int zisofs_fill_pages(struct inode *inode, int full_page, int pcount,
 		memzero_page(*pages, poffset, PAGE_SIZE - poffset);
 		SetPageUptodate(*pages);
 	}
+	brelse(bh);
 	return 0;
 }