Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

[pandora-kernel.git] / drivers / media / video / v4l2-dev.c

diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 88eeee1..155fdec 100644 (file)
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -222,11 +222,13 @@ int video_register_device(struct video_device *vfd, int type, int nr)
 EXPORT_SYMBOL(video_register_device);
 
 /**
- *     video_register_device - register video4linux devices
+ *     video_register_device_index - register video4linux devices
  *     @vfd:  video device structure we want to register
  *     @type: type of device to register
  *     @nr:   which device number (0 == /dev/video0, 1 == /dev/video1, ...
  *             -1 == first free)
+ *     @index: stream number based on parent device;
+ *             -1 if auto assign, requested number otherwise
  *
  *     The registration code assigns minor numbers based on the type
  *     requested. -ENFILE is returned in all the device slots for this
@@ -255,6 +257,9 @@ int video_register_device_index(struct video_device *vfd, int type, int nr,
        int ret;
        char *name_base;
 
+       if (vfd == NULL)
+               return -EINVAL;
+
        switch (type) {
        case VFL_TYPE_GRABBER:
                base = MINOR_VFL_TYPE_GRABBER_MIN;
@@ -279,7 +284,7 @@ int video_register_device_index(struct video_device *vfd, int type, int nr,
        default:
                printk(KERN_ERR "%s called with unknown type: %d\n",
                       __func__, type);
-               return -1;
+               return -EINVAL;
        }
 
        /* pick a minor number */
@@ -302,6 +307,7 @@ int video_register_device_index(struct video_device *vfd, int type, int nr,
                }
        }
        video_device[i] = vfd;
+       vfd->vfl_type = type;
        vfd->minor = i;
 
        ret = get_index(vfd, index);