[PATCH] uio: uio_dmem_genirq: check the return value of devm_kasprintf()

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

devm_kasprintf() can fail so check its return value and bail-out on no
memory.

Fixes: 52e2dc2ce2d8 ("uio: Convert a few more users to using %pOFn instead of device_node.name")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
---
 drivers/uio/uio_dmem_genirq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c
index c70dd81bfc61f..31aa75110ba59 100644
--- a/drivers/uio/uio_dmem_genirq.c
+++ b/drivers/uio/uio_dmem_genirq.c
@@ -167,6 +167,8 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev)
 		}
 		uioinfo->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOFn",
 					       pdev->dev.of_node);
+		if (!uioinfo->name)
+			return -ENOMEM;
 		uioinfo->version = "devicetree";
 	}
 
-- 
2.45.2