* [PATCH] usb: stkwebcam: update the reference count of the usb device structure
@ 2021-07-24 19:58 Salah Triki
2021-07-25 6:40 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: Salah Triki @ 2021-07-24 19:58 UTC (permalink / raw)
To: Mauro Carvalho Chehab, gregkh; +Cc: linux-media, linux-kernel
Use usb_get_dev() and usb_put_dev() in order to update the reference
count of the usb device structure.
Signed-off-by: Salah Triki <salah.triki@gmail.com>
---
drivers/media/usb/stkwebcam/stk-webcam.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c
index a45d464427c4..3b14679829ed 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.c
+++ b/drivers/media/usb/stkwebcam/stk-webcam.c
@@ -1309,7 +1309,7 @@ static int stk_camera_probe(struct usb_interface *interface,
init_waitqueue_head(&dev->wait_frame);
dev->first_init = 1; /* webcam LED management */
- dev->udev = udev;
+ dev->udev = usb_get_dev(udev);
dev->interface = interface;
usb_get_intf(interface);
@@ -1376,6 +1376,7 @@ static void stk_camera_disconnect(struct usb_interface *interface)
usb_set_intfdata(interface, NULL);
unset_present(dev);
+ usb_put_dev(interface_to_usbdev(interface));
wake_up_interruptible(&dev->wait_frame);
--
2.25.1
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2021-07-24 19:58 [PATCH] usb: stkwebcam: update the reference count of the usb device structure Salah Triki
2021-07-25 6:40 ` Greg KH
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