From ec7478fa173f65e5ee5fd2ba42c59ca3e700027b Mon Sep 17 00:00:00 2001 From: shengyong Date: Thu, 25 Jun 2015 02:23:13 +0000 Subject: [PATCH] mtd: nandsim: fix free of NULL pointer If allocating ns->nand_pages_slab fails, do not try to destroy it when cleaning up nandsim resources. Signed-off-by: Sheng Yong Signed-off-by: Brian Norris --- drivers/mtd/nand/nandsim.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 52c0c1a3899c..6a74f62a0033 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -649,7 +649,8 @@ static void free_device(struct nandsim *ns) kmem_cache_free(ns->nand_pages_slab, ns->pages[i].byte); } - kmem_cache_destroy(ns->nand_pages_slab); + if (ns->nand_pages_slab) + kmem_cache_destroy(ns->nand_pages_slab); vfree(ns->pages); } } -- 2.20.1