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path: root/drivers/media/video/v4l2-dev.c
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Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
-rw-r--r--drivers/media/video/v4l2-dev.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 359e23290a7e..341764a3a990 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -419,6 +419,10 @@ static int get_index(struct video_device *vdev)
419 * The registration code assigns minor numbers and device node numbers 419 * The registration code assigns minor numbers and device node numbers
420 * based on the requested type and registers the new device node with 420 * based on the requested type and registers the new device node with
421 * the kernel. 421 * the kernel.
422 *
423 * This function assumes that struct video_device was zeroed when it
424 * was allocated and does not contain any stale date.
425 *
422 * An error is returned if no free minor or device node number could be 426 * An error is returned if no free minor or device node number could be
423 * found, or if the registration of the device node failed. 427 * found, or if the registration of the device node failed.
424 * 428 *
@@ -440,7 +444,6 @@ static int __video_register_device(struct video_device *vdev, int type, int nr,
440 int minor_offset = 0; 444 int minor_offset = 0;
441 int minor_cnt = VIDEO_NUM_DEVICES; 445 int minor_cnt = VIDEO_NUM_DEVICES;
442 const char *name_base; 446 const char *name_base;
443 void *priv = vdev->dev.p;
444 447
445 /* A minor value of -1 marks this video device as never 448 /* A minor value of -1 marks this video device as never
446 having been registered */ 449 having been registered */
@@ -559,10 +562,6 @@ static int __video_register_device(struct video_device *vdev, int type, int nr,
559 } 562 }
560 563
561 /* Part 4: register the device with sysfs */ 564 /* Part 4: register the device with sysfs */
562 memset(&vdev->dev, 0, sizeof(vdev->dev));
563 /* The memset above cleared the device's device_private, so
564 put back the copy we made earlier. */
565 vdev->dev.p = priv;
566 vdev->dev.class = &video_class; 565 vdev->dev.class = &video_class;
567 vdev->dev.devt = MKDEV(VIDEO_MAJOR, vdev->minor); 566 vdev->dev.devt = MKDEV(VIDEO_MAJOR, vdev->minor);
568 if (vdev->parent) 567 if (vdev->parent)