diff mbox series

[3/3] USB: imon: drop references only after device is no longer used

Message ID 20220428133455.3200-3-oneukum@suse.com (mailing list archive)
State New, archived
Headers show
Series [1/3] USB: imon: avoid needless atomic allocations in resume | expand

Commit Message

Oliver Neukum April 28, 2022, 1:34 p.m. UTC
The point of using get/put_device() is to keep references
for as long as the device may be in use. That means dropping
them must be the penultimate action right before freeing the memory.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 drivers/media/rc/imon.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c
index 8dbeab48ed3c..ad8bca8a8abd 100644
--- a/drivers/media/rc/imon.c
+++ b/drivers/media/rc/imon.c
@@ -2523,7 +2523,6 @@  static void imon_disconnect(struct usb_interface *interface)
 	if (ifnum == 0) {
 		ictx->dev_present_intf0 = false;
 		usb_kill_urb(ictx->rx_urb_intf0);
-		usb_put_dev(ictx->usbdev_intf0);
 		input_unregister_device(ictx->idev);
 		rc_unregister_device(ictx->rdev);
 		if (ictx->display_supported) {
@@ -2532,14 +2531,15 @@  static void imon_disconnect(struct usb_interface *interface)
 			else if (ictx->display_type == IMON_DISPLAY_TYPE_VFD)
 				usb_deregister_dev(interface, &imon_vfd_class);
 		}
+		usb_put_dev(ictx->usbdev_intf0);
 	} else {
 		ictx->dev_present_intf1 = false;
 		usb_kill_urb(ictx->rx_urb_intf1);
-		usb_put_dev(ictx->usbdev_intf1);
 		if (ictx->display_type == IMON_DISPLAY_TYPE_VGA) {
 			del_timer_sync(&ictx->ttimer);
 			input_unregister_device(ictx->touch);
 		}
+		usb_put_dev(ictx->usbdev_intf1);
 	}
 
 	if (!ictx->dev_present_intf0 && !ictx->dev_present_intf1)