From dbc6798b80481a20f9aff671bc4d529eae63c9e8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 5 Mar 2026 11:39:19 +0100 Subject: [PATCH] media: usbtv: drop redundant device reference Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. Drop the redundant device reference to reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of memory leaks when drivers fail to release it. Signed-off-by: Johan Hovold Signed-off-by: Hans Verkuil --- drivers/media/usb/usbtv/usbtv-core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/media/usb/usbtv/usbtv-core.c b/drivers/media/usb/usbtv/usbtv-core.c index c4bfadbe63c9..6c4facf4f41a 100644 --- a/drivers/media/usb/usbtv/usbtv-core.c +++ b/drivers/media/usb/usbtv/usbtv-core.c @@ -91,7 +91,7 @@ static int usbtv_probe(struct usb_interface *intf, if (usbtv == NULL) return -ENOMEM; usbtv->dev = dev; - usbtv->udev = usb_get_dev(interface_to_usbdev(intf)); + usbtv->udev = interface_to_usbdev(intf); usbtv->iso_size = size; @@ -119,7 +119,6 @@ static int usbtv_probe(struct usb_interface *intf, usbtv_video_fail: usb_set_intfdata(intf, NULL); - usb_put_dev(usbtv->udev); kfree(usbtv); return ret; @@ -137,7 +136,6 @@ static void usbtv_disconnect(struct usb_interface *intf) usbtv_audio_free(usbtv); usbtv_video_free(usbtv); - usb_put_dev(usbtv->udev); usbtv->udev = NULL; /* the usbtv structure will be deallocated when v4l2 will be