V4L/DVB (10502): saa7146: move v4l2 device registration to saa7146_vv.
Doing the v4l2_device registration in the saa7146 core will make it
dependent on v4l2, even for DVB-only boards. This registration and
unregistration belongs in saa7146_vv instead.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c
index a123844..982f000 100644
--- a/drivers/media/common/saa7146_core.c
+++ b/drivers/media/common/saa7146_core.c
@@ -363,16 +363,13 @@
ERR(("out of memory.\n"));
goto out;
}
- err = v4l2_device_register(&pci->dev, &dev->v4l2_dev);
- if (err)
- goto err_free;
DEB_EE(("pci:%p\n",pci));
err = pci_enable_device(pci);
if (err < 0) {
ERR(("pci_enable_device() failed.\n"));
- goto err_unreg;
+ goto err_free;
}
/* enable bus-mastering */
@@ -480,6 +477,10 @@
DEB_D(("ext->attach() failed for %p. skipping device.\n",dev));
goto err_free_i2c;
}
+ /* V4L extensions will set the pci drvdata to the v4l2_device in the
+ attach() above. So for those cards that do not use V4L we have to
+ set it explicitly. */
+ pci_set_drvdata(pci, &dev->v4l2_dev);
INIT_LIST_HEAD(&dev->item);
list_add_tail(&dev->item,&saa7146_devices);
@@ -506,8 +507,6 @@
pci_release_region(pci, 0);
err_disable:
pci_disable_device(pci);
-err_unreg:
- v4l2_device_unregister(&dev->v4l2_dev);
err_free:
kfree(dev);
goto out;
@@ -530,7 +529,8 @@
DEB_EE(("dev:%p\n",dev));
dev->ext->detach(dev);
- v4l2_device_unregister(&dev->v4l2_dev);
+ /* Zero the PCI drvdata after use. */
+ pci_set_drvdata(pdev, NULL);
/* shut down all video dma transfers */
saa7146_write(dev, MC1, 0x00ff0000);
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index fec799d..620f655 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -446,11 +446,17 @@
int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
{
- struct saa7146_vv *vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL);
+ struct saa7146_vv *vv;
+ int err;
+ err = v4l2_device_register(&dev->pci->dev, &dev->v4l2_dev);
+ if (err)
+ return err;
+
+ vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL);
if (vv == NULL) {
ERR(("out of memory. aborting.\n"));
- return -1;
+ return -ENOMEM;
}
ext_vv->ops = saa7146_video_ioctl_ops;
ext_vv->core_ops = &saa7146_video_ioctl_ops;
@@ -496,6 +502,7 @@
DEB_EE(("dev:%p\n",dev));
+ v4l2_device_unregister(&dev->v4l2_dev);
pci_free_consistent(dev->pci, SAA7146_CLIPPING_MEM, vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle);
kfree(vv);
dev->vv_data = NULL;