lkml.org 
[lkml]   [2016]   [Mar]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] media: au0828 fix to clear enable/disable/change source handlers
Date
Fix to clear enable/disable/change source handlers in the media device
when media device is unregistered in au0828_unregister_media_device().
When au0828 module is removed, snd-usb-audio shouldn't call the handlers.
Clearing will ensure snd-usb-audio won't call them once au0828 is removed.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
---
drivers/media/usb/au0828/au0828-core.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index de9ab11..abdb956 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -137,6 +137,12 @@ static void au0828_unregister_media_device(struct au0828_dev *dev)
#ifdef CONFIG_MEDIA_CONTROLLER
if (dev->media_dev &&
media_devnode_is_registered(&dev->media_dev->devnode)) {
+ /* clear enable_source, disable_source, change_source */
+ dev->media_dev->source_priv = NULL;
+ dev->media_dev->enable_source = NULL;
+ dev->media_dev->disable_source = NULL;
+ dev->media_dev->change_source = NULL;
+
media_device_unregister(dev->media_dev);
media_device_cleanup(dev->media_dev);
dev->media_dev = NULL;
--
2.5.0
\
 
 \ /
  Last update: 2016-03-13 05:41    [W:0.033 / U:0.276 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site