From 395999829880a106bb95f0ce34e6e4c2b43c6a5d Mon Sep 17 00:00:00 2001 From: Charles Han Date: Wed, 28 Aug 2024 17:24:27 +0800 Subject: [PATCH] mtd: powernv: Add check devm_kasprintf() returned value devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fixes: acfe63ec1c59 ("mtd: Convert to using %pOFn instead of device_node.name") Signed-off-by: Charles Han Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20240828092427.128177-1-hanchunchao@inspur.com --- drivers/mtd/devices/powernv_flash.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/devices/powernv_flash.c b/drivers/mtd/devices/powernv_flash.c index 66044f4f5bad..10cd1d9b4885 100644 --- a/drivers/mtd/devices/powernv_flash.c +++ b/drivers/mtd/devices/powernv_flash.c @@ -207,6 +207,9 @@ static int powernv_flash_set_driver_info(struct device *dev, * get them */ mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFP", dev->of_node); + if (!mtd->name) + return -ENOMEM; + mtd->type = MTD_NORFLASH; mtd->flags = MTD_WRITEABLE; mtd->size = size;