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Subject: [media] media: v4l2-dev: fix video device index assignment Author: Marek Szyprowski <[email protected]> Date: Tue Dec 3 10:14:29 2013 -0300 The side effect of commit 1056e4388b045 ("v4l2-dev: Fix race condition on __video_register_device") is the increased number of index value assigned on video_device registration. Before that commit video_devices were numbered from 0, after it, the indexes starts from 1, because get_index() always count the device, which is being registered. Some device drivers rely on video_device index number for internal purposes, i.e. s5p-mfc driver stopped working after that patch. This patch restores the old method of numbering the video_device indexes. Cc: [email protected] # for v3.12 Signed-off-by: Marek Szyprowski <[email protected]> Acked-by: Sakari Ailus <[email protected]> Acked-by: Ricardo Ribalda <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/v4l2-core/v4l2-dev.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=0eb61a5ea59aa8ddca3efc24badacf15d57d0f47 diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index b5aaaac..0a30dbf 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -872,8 +872,8 @@ int __video_register_device(struct video_device *vdev, int type, int nr, /* Should not happen since we thought this minor was free */ WARN_ON(video_device[vdev->minor] != NULL); - video_device[vdev->minor] = vdev; vdev->index = get_index(vdev); + video_device[vdev->minor] = vdev; mutex_unlock(&videodev_lock); if (vdev->ioctl_ops) -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
