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usb: gadget: uvc: ensure the vdev is unset

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Since the uvc video device is created on demand, we have to ensure
that the struct is always zeroed. Otherwise the previous settings
might collide with the new values.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20211017215017.18392-7-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Grzeschik 2021-10-17 23:50:17 +02:00 committed by Greg Kroah-Hartman
parent f9897ec0f6
commit e4ce9ed835
1 changed files with 1 additions and 0 deletions
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1
drivers/usb/gadget/function/f_uvc.c
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@ -417,6 +417,7 @@ uvc_register_video(struct uvc_device *uvc)
int ret;
/* TODO reference counting. */
memset(&uvc->vdev, 0, sizeof(uvc->video));
uvc->vdev.v4l2_dev = &uvc->v4l2_dev;
uvc->vdev.v4l2_dev->dev = &cdev->gadget->dev;
uvc->vdev.fops = &uvc_v4l2_fops;