On Wed, 23 Jan 2019 17:28:19 +0800
YueHaibing <yuehaib...@huawei.com> wrote:
> In case DOC_CHIPID_G3, mtd->name is not freed in err handling path,
> which is alloced by kasprintf(). Fix this by using devm_kasprintf().
>
> Fixes: ae9d4934b2d7 ("mtd: docg3: add multiple floor support")
> Signed-off-by: YueHaibing <yuehaib...@huawei.com>
> ---
> v3: use devm_kasprintf
> ---
> drivers/mtd/devices/docg3.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
> index 4c94fc0..59ca4f5 100644
> --- a/drivers/mtd/devices/docg3.c
> +++ b/drivers/mtd/devices/docg3.c
> @@ -1767,8 +1767,8 @@ static int __init doc_set_driver_info(int chip_id,
> struct mtd_info *mtd)
>
> switch (chip_id) {
> case DOC_CHIPID_G3:
> - mtd->name = kasprintf(GFP_KERNEL, "docg3.%d",
> - docg3->device_id);
> + mtd->name = devm_kasprintf(docg3->dev, GFP_KERNEL, "docg3.%d",
> + docg3->device_id);
You forgot to remove the kfree() in the ->remove() path.
> if (!mtd->name)
> return -ENOMEM;
> docg3->max_block = 2047;
