5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Charles Han <hanchunchao@xxxxxxxxxx>
[ Upstream commit 395999829880a106bb95f0ce34e6e4c2b43c6a5d ]
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 <hanchunchao@xxxxxxxxxx>
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20240828092427.128177-1-hanchunchao@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 0b757d9ba2f6b..0ab64a1cec09e 100644
--- a/drivers/mtd/devices/powernv_flash.c
+++ b/drivers/mtd/devices/powernv_flash.c
@@ -204,6 +204,9 @@ 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;
--
2.43.0
