[PATCH] Input: Check dev_set_name() return value

[Ma Ke]

It's possible that dev_set_name() returns -ENOMEM. We could catch and
handle it by adding dev_set_name() return value check.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 7f8d4cad1e4e ("Input: extend the number of event (and other) devices")
Signed-off-by: Ma Ke <make_ruc2021@xxxxxxx>
---
 drivers/input/evdev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index b5cbb57ee5f6..c4dc280c4c49 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -1361,7 +1361,9 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
 	/* Normalize device number if it falls into legacy range */
 	if (dev_no < EVDEV_MINOR_BASE + EVDEV_MINORS)
 		dev_no -= EVDEV_MINOR_BASE;
-	dev_set_name(&evdev->dev, "event%d", dev_no);
+	error = dev_set_name(&evdev->dev, "event%d", dev_no);
+	if (error)
+		goto err_free_minor;
 
 	evdev->handle.dev = input_get_device(dev);
 	evdev->handle.name = dev_name(&evdev->dev);
-- 
2.25.1