This is a note to let you know that I've just added the patch titled
mtd: powernv: Add check devm_kasprintf() returned value
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-powernv-add-check-devm_kasprintf-returned-value.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3ad1fa50cf57604bdc0ec195f7640e1f52d20fe4
Author: Charles Han <hanchunchao@xxxxxxxxxx>
Date: Wed Aug 28 17:24:27 2024 +0800
mtd: powernv: Add check devm_kasprintf() returned value
[ 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>
diff --git a/drivers/mtd/devices/powernv_flash.c b/drivers/mtd/devices/powernv_flash.c
index 6950a87648151..1277ca677becf 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;
