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V4L/DVB (4741): {ov511,stv680}: handle sysfs errors 

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Jeff Garzik 2006-10-10 15:09:43 -03:00 committed by Mauro Carvalho Chehab
parent 474ce78130
commit 2444a2fca4
2 changed files with 90 additions and 21 deletions
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58
drivers/media/video/ov511.c
View File

@ -5648,17 +5648,49 @@ static ssize_t show_exposure(struct class_device *cd, char *buf)
}
static CLASS_DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL);
static void ov_create_sysfs(struct video_device *vdev)
static int ov_create_sysfs(struct video_device *vdev)
{
video_device_create_file(vdev, &class_device_attr_custom_id);
video_device_create_file(vdev, &class_device_attr_model);
video_device_create_file(vdev, &class_device_attr_bridge);
video_device_create_file(vdev, &class_device_attr_sensor);
video_device_create_file(vdev, &class_device_attr_brightness);
video_device_create_file(vdev, &class_device_attr_saturation);
video_device_create_file(vdev, &class_device_attr_contrast);
video_device_create_file(vdev, &class_device_attr_hue);
video_device_create_file(vdev, &class_device_attr_exposure);
int rc;
rc = video_device_create_file(vdev, &class_device_attr_custom_id);
if (rc) goto err;
rc = video_device_create_file(vdev, &class_device_attr_model);
if (rc) goto err_id;
rc = video_device_create_file(vdev, &class_device_attr_bridge);
if (rc) goto err_model;
rc = video_device_create_file(vdev, &class_device_attr_sensor);
if (rc) goto err_bridge;
rc = video_device_create_file(vdev, &class_device_attr_brightness);
if (rc) goto err_sensor;
rc = video_device_create_file(vdev, &class_device_attr_saturation);
if (rc) goto err_bright;
rc = video_device_create_file(vdev, &class_device_attr_contrast);
if (rc) goto err_sat;
rc = video_device_create_file(vdev, &class_device_attr_hue);
if (rc) goto err_contrast;
rc = video_device_create_file(vdev, &class_device_attr_exposure);
if (rc) goto err_hue;
return 0;
err_hue:
video_device_remove_file(vdev, &class_device_attr_hue);
err_contrast:
video_device_remove_file(vdev, &class_device_attr_contrast);
err_sat:
video_device_remove_file(vdev, &class_device_attr_saturation);
err_bright:
video_device_remove_file(vdev, &class_device_attr_brightness);
err_sensor:
video_device_remove_file(vdev, &class_device_attr_sensor);
err_bridge:
video_device_remove_file(vdev, &class_device_attr_bridge);
err_model:
video_device_remove_file(vdev, &class_device_attr_model);
err_id:
video_device_remove_file(vdev, &class_device_attr_custom_id);
err:
return rc;
}
/****************************************************************************
@ -5817,7 +5849,11 @@ ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id)
ov->vdev->minor);
usb_set_intfdata(intf, ov);
ov_create_sysfs(ov->vdev);
if (ov_create_sysfs(ov->vdev)) {
err("ov_create_sysfs failed");
goto error;
}
return 0;
error:

53
drivers/media/video/stv680.c
View File

@ -516,16 +516,45 @@ stv680_file(frames_read, framecount, "%d\n");
stv680_file(packets_dropped, dropped, "%d\n");
stv680_file(decoding_errors, error, "%d\n");
static void stv680_create_sysfs_files(struct video_device *vdev)
static int stv680_create_sysfs_files(struct video_device *vdev)
{
video_device_create_file(vdev, &class_device_attr_model);
video_device_create_file(vdev, &class_device_attr_in_use);
video_device_create_file(vdev, &class_device_attr_streaming);
video_device_create_file(vdev, &class_device_attr_palette);
video_device_create_file(vdev, &class_device_attr_frames_total);
video_device_create_file(vdev, &class_device_attr_frames_read);
video_device_create_file(vdev, &class_device_attr_packets_dropped);
video_device_create_file(vdev, &class_device_attr_decoding_errors);
int rc;
rc = video_device_create_file(vdev, &class_device_attr_model);
if (rc) goto err;
rc = video_device_create_file(vdev, &class_device_attr_in_use);
if (rc) goto err_model;
rc = video_device_create_file(vdev, &class_device_attr_streaming);
if (rc) goto err_inuse;
rc = video_device_create_file(vdev, &class_device_attr_palette);
if (rc) goto err_stream;
rc = video_device_create_file(vdev, &class_device_attr_frames_total);
if (rc) goto err_pal;
rc = video_device_create_file(vdev, &class_device_attr_frames_read);
if (rc) goto err_framtot;
rc = video_device_create_file(vdev, &class_device_attr_packets_dropped);
if (rc) goto err_framread;
rc = video_device_create_file(vdev, &class_device_attr_decoding_errors);
if (rc) goto err_dropped;
return 0;
err_dropped:
video_device_remove_file(vdev, &class_device_attr_packets_dropped);
err_framread:
video_device_remove_file(vdev, &class_device_attr_frames_read);
err_framtot:
video_device_remove_file(vdev, &class_device_attr_frames_total);
err_pal:
video_device_remove_file(vdev, &class_device_attr_palette);
err_stream:
video_device_remove_file(vdev, &class_device_attr_streaming);
err_inuse:
video_device_remove_file(vdev, &class_device_attr_in_use);
err_model:
video_device_remove_file(vdev, &class_device_attr_model);
err:
return rc;
}
static void stv680_remove_sysfs_files(struct video_device *vdev)
@ -1418,9 +1447,13 @@ static int stv680_probe (struct usb_interface *intf, const struct usb_device_id
PDEBUG (0, "STV(i): registered new video device: video%d", stv680->vdev->minor);
usb_set_intfdata (intf, stv680);
stv680_create_sysfs_files(stv680->vdev);
retval = stv680_create_sysfs_files(stv680->vdev);
if (retval)
goto error_unreg;
return 0;
error_unreg:
video_unregister_device(stv680->vdev);
error_vdev:
video_device_release(stv680->vdev);
error: