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[media] vivid: use v4l2_device.release to clean up the driver 

Use the release callback of the v4l2_device to clean up the memory.
This prevents vivid from breaking if someone tries to unbind the
driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-03-13 07:41:05 -03:00 committed by Mauro Carvalho Chehab
parent f46d740fb0
commit 87c674e243
1 changed files with 23 additions and 20 deletions
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43
drivers/media/platform/vivid/vivid-core.c
View File

@ -619,6 +619,22 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = {
Initialization and module stuff
------------------------------------------------------------------*/
static void vivid_dev_release(struct v4l2_device *v4l2_dev)
{
struct vivid_dev *dev = container_of(v4l2_dev, struct vivid_dev, v4l2_dev);
vivid_free_controls(dev);
v4l2_device_unregister(&dev->v4l2_dev);
vfree(dev->scaled_line);
vfree(dev->blended_line);
vfree(dev->edid);
vfree(dev->bitmap_cap);
vfree(dev->bitmap_out);
tpg_free(&dev->tpg);
kfree(dev->query_dv_timings_qmenu);
kfree(dev);
}
static int vivid_create_instance(struct platform_device *pdev, int inst)
{
static const struct v4l2_dv_timings def_dv_timings =
@ -648,8 +664,11 @@ static int vivid_create_instance(struct platform_device *pdev, int inst)
snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name),
"%s-%03d", VIVID_MODULE_NAME, inst);
ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
if (ret)
goto free_dev;
if (ret) {
kfree(dev);
return ret;
}
dev->v4l2_dev.release = vivid_dev_release;
/* start detecting feature set */
@ -1257,15 +1276,8 @@ unreg_dev:
video_unregister_device(&dev->vbi_cap_dev);
video_unregister_device(&dev->vid_out_dev);
video_unregister_device(&dev->vid_cap_dev);
vivid_free_controls(dev);
v4l2_device_unregister(&dev->v4l2_dev);
free_dev:
vfree(dev->scaled_line);
vfree(dev->blended_line);
vfree(dev->edid);
tpg_free(&dev->tpg);
kfree(dev->query_dv_timings_qmenu);
kfree(dev);
v4l2_device_put(&dev->v4l2_dev);
return ret;
}
@ -1359,16 +1371,7 @@ static int vivid_remove(struct platform_device *pdev)
unregister_framebuffer(&dev->fb_info);
vivid_fb_release_buffers(dev);
}
v4l2_device_unregister(&dev->v4l2_dev);
vivid_free_controls(dev);
vfree(dev->scaled_line);
vfree(dev->blended_line);
vfree(dev->edid);
vfree(dev->bitmap_cap);
vfree(dev->bitmap_out);
tpg_free(&dev->tpg);
kfree(dev->query_dv_timings_qmenu);
kfree(dev);
v4l2_device_put(&dev->v4l2_dev);
vivid_devs[i] = NULL;
}
return 0;