diff options
| author | shengyong <shengyong1@huawei.com> | 2015-06-25 04:23:14 +0200 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2015-07-07 00:20:10 +0200 |
| commit | 5891a8d11f79b9a45a7334a63d0fa731875bc308 (patch) | |
| tree | 48e444d95e883ed57f993b872c42be9296311eb9 /drivers/mtd | |
| parent | mtd: nandsim: fix free of NULL pointer (diff) | |
| download | linux-5891a8d11f79b9a45a7334a63d0fa731875bc308.tar.xz linux-5891a8d11f79b9a45a7334a63d0fa731875bc308.zip | |
mtd: nandsim: fix double free
Do not call free_device() in init_nandsim, the caller - ns_init_module -
will take care of that if something goes wrong.
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/nandsim.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 6a74f62a0033..95d0cc49cfc2 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -730,8 +730,7 @@ static int init_nandsim(struct mtd_info *mtd) /* Fill the partition_info structure */ if (parts_num > ARRAY_SIZE(ns->partitions)) { NS_ERR("too many partitions.\n"); - ret = -EINVAL; - goto error; + return -EINVAL; } remains = ns->geom.totsz; next_offset = 0; @@ -740,14 +739,12 @@ static int init_nandsim(struct mtd_info *mtd) if (!part_sz || part_sz > remains) { NS_ERR("bad partition size.\n"); - ret = -EINVAL; - goto error; + return -EINVAL; } ns->partitions[i].name = get_partition_name(i); if (!ns->partitions[i].name) { NS_ERR("unable to allocate memory.\n"); - ret = -ENOMEM; - goto error; + return -ENOMEM; } ns->partitions[i].offset = next_offset; ns->partitions[i].size = part_sz; @@ -758,14 +755,12 @@ static int init_nandsim(struct mtd_info *mtd) if (remains) { if (parts_num + 1 > ARRAY_SIZE(ns->partitions)) { NS_ERR("too many partitions.\n"); - ret = -EINVAL; - goto error; + return -EINVAL; } ns->partitions[i].name = get_partition_name(i); if (!ns->partitions[i].name) { NS_ERR("unable to allocate memory.\n"); - ret = -ENOMEM; - goto error; + return -ENOMEM; } ns->partitions[i].offset = next_offset; ns->partitions[i].size = remains; @@ -793,24 +788,18 @@ static int init_nandsim(struct mtd_info *mtd) printk("options: %#x\n", ns->options); if ((ret = alloc_device(ns)) != 0) - goto error; + return ret; /* Allocate / initialize the internal buffer */ ns->buf.byte = kmalloc(ns->geom.pgszoob, GFP_KERNEL); if (!ns->buf.byte) { NS_ERR("init_nandsim: unable to allocate %u bytes for the internal buffer\n", ns->geom.pgszoob); - ret = -ENOMEM; - goto error; + return -ENOMEM; } memset(ns->buf.byte, 0xFF, ns->geom.pgszoob); return 0; - -error: - free_device(ns); - - return ret; } /* |