Patch "media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF" has been added to the 4.15-stable tree

This is a note to let you know that I've just added the patch titled

media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF

to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
media-v4l2-compat-ioctl32.c-add-missing-vidioc_prepare_buf.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Hans Verkuil <[email protected]>
Date: Wed, 24 Jan 2018 08:37:04 -0500
Subject: media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF

From: Hans Verkuil <[email protected]>

commit 3ee6d040719ae09110e5cdf24d5386abe5d1b776 upstream.

The result of the VIDIOC_PREPARE_BUF ioctl was never copied back to userspace since it was missing in the switch.

---
 drivers/media/v4l2-core/v4l2-compat-ioctl32.c |    1 +
 1 file changed, 1 insertion(+)

@@ -1052,6 +1052,7 @@ static long do_video_ioctl(struct file *
 		err = put_v4l2_create32(&karg.v2crt, up);
 		break;
 
+	case VIDIOC_PREPARE_BUF:
 	case VIDIOC_QUERYBUF:
 	case VIDIOC_QBUF:
 	case VIDIOC_DQBUF:

Patches currently in stable-queue which might be from [email protected] are

queue-4.15/media-hdpvr-fix-an-error-handling-path-in-hdpvr_probe.patch queue-4.15/media-v4l2-compat-ioctl32.c-copy-m.userptr-in-put_v4l2_plane32.patch queue-4.15/media-v4l2-compat-ioctl32.c-avoid-sizeof-type.patch queue-4.15/media-v4l2-compat-ioctl32.c-drop-pr_info-for-unknown-buffer-type.patch queue-4.15/media-v4l2-compat-ioctl32.c-add-missing-vidioc_prepare_buf.patch queue-4.15/media-v4l2-compat-ioctl32.c-refactor-compat-ioctl32-logic.patch queue-4.15/media-v4l2-compat-ioctl32.c-fix-ctrl_is_pointer.patch queue-4.15/media-v4l2-compat-ioctl32.c-move-helper-functions-to-__get-put_v4l2_format32.patch queue-4.15/media-v4l2-compat-ioctl32.c-don-t-copy-back-the-result-for-certain-errors.patch queue-4.15/media-v4l2-compat-ioctl32.c-make-ctrl_is_pointer-work-for-subdevs.patch queue-4.15/media-v4l2-compat-ioctl32.c-fix-the-indentation.patch queue-4.15/media-v4l2-ioctl.c-don-t-copy-back-the-result-for-enotty.patch queue-4.15/media-v4l2-ioctl.c-use-check_fmt-for-enum-g-s-try_fmt.patch queue-4.15/media-v4l2-compat-ioctl32.c-copy-clip-list-in-put_v4l2_window32.patch