media: uvcvideo: Avoid variable shadowing in uvc_ctrl_cleanup_fh

This avoids a variable loop shadowing occurring between the local loop
iterating through the uvc_entity's controls and the global one going
through the pending async controls of the file handle.

Fixes: 10acb91 ("media: uvcvideo: Increase/decrease the PM counter per IOCTL")
Cc: stable@vger.kernel.org
Signed-off-by: Desnes Nunes <desnesn@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans de Goede <hansg@kernel.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>

Author: Desnes Nunes

drivers/media/usb/uvc/uvc_ctrl.c

@@ -3307,7 +3307,6 @@ int uvc_ctrl_init_device(struct uvc_device *dev)
 void uvc_ctrl_cleanup_fh(struct uvc_fh *handle)
 {
 	struct uvc_entity *entity;
-	int i;
 
 	guard(mutex)(&handle->chain->ctrl_mutex);
 
@@ -3325,7 +3324,7 @@ void uvc_ctrl_cleanup_fh(struct uvc_fh *handle)
 	if (!WARN_ON(handle->pending_async_ctrls))
 		return;
 
-	for (i = 0; i < handle->pending_async_ctrls; i++)
+	for (unsigned int i = 0; i < handle->pending_async_ctrls; i++)
 		uvc_pm_put(handle->stream->dev);
 }