devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity.
Fixes: acfe63ec1c59 ("mtd: Convert to using %pOFn instead of device_node.name") Signed-off-by: Yi Yang <yiyan...@huawei.com> --- drivers/mtd/devices/powernv_flash.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/devices/powernv_flash.c b/drivers/mtd/devices/powernv_flash.c index 66044f4f5bad..956a79c739e5 100644 --- a/drivers/mtd/devices/powernv_flash.c +++ b/drivers/mtd/devices/powernv_flash.c @@ -207,6 +207,10 @@ 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) { + dev_err(dev, "failed to allocate mtd->name\n"); + return -ENOMEM; + } mtd->type = MTD_NORFLASH; mtd->flags = MTD_WRITEABLE; mtd->size = size; -- 2.25.1