4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Fabio Estevam <fabio.estevam@xxxxxxx> commit 069f05346d01e7298939f16533953cdf52370be3 upstream. devm_kasprintf() may fail, so we should better add a NULL check and propagate an error on failure. Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxx> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mtd/nand/qcom_nandc.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/mtd/nand/qcom_nandc.c +++ b/drivers/mtd/nand/qcom_nandc.c @@ -2008,6 +2008,9 @@ static int qcom_nand_host_init(struct qc nand_set_flash_node(chip, dn); mtd->name = devm_kasprintf(dev, GFP_KERNEL, "qcom_nand.%d", host->cs); + if (!mtd->name) + return -ENOMEM; + mtd->owner = THIS_MODULE; mtd->dev.parent = dev;