target/linux/ipq40xx/patches-4.14/050-0006-mtd-nand-qcom-Add-a-NULL-check-for-devm_kasprintf.patch

   1 From 069f05346d01e7298939f16533953cdf52370be3 Mon Sep 17 00:00:00 2001
   2 From: Fabio Estevam <fabio.estevam@nxp.com>
   3 Date: Fri, 5 Jan 2018 18:02:55 -0200
   4 Subject: [PATCH 6/7] mtd: nand: qcom: Add a NULL check for devm_kasprintf()
   5
   6 devm_kasprintf() may fail, so we should better add a NULL check
   7 and propagate an error on failure.
   8
   9 Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
  10 Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
  11 ---
  12  drivers/mtd/nand/qcom_nandc.c | 3 +++
  13  1 file changed, 3 insertions(+)
  14
  15 --- a/drivers/mtd/nand/qcom_nandc.c
  16 +++ b/drivers/mtd/nand/qcom_nandc.c
  17 @@ -2639,6 +2639,9 @@ static int qcom_nand_host_init(struct qc
  18
  19         nand_set_flash_node(chip, dn);
  20         mtd->name = devm_kasprintf(dev, GFP_KERNEL, "qcom_nand.%d", host->cs);
  21 +       if (!mtd->name)
  22 +               return -ENOMEM;
  23 +
  24         mtd->owner = THIS_MODULE;
  25         mtd->dev.parent = dev;
  26