[PATCH] mtd: powernv: Add check devm_kasprintf() returned value

From
Charles Han <hidden>
Date
2024-08-28 10:22:28
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 <redacted>
---
 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;
-- 
2.31.1

Thread (2 messages) 2 messages, 2 authors, last reply 2024-09-06
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