Em Mon, 21 Mar 2016 14:30:38 +0100 Max Kellermann <max@xxxxxxxxxxx> escreveu: > Allow the client to free its data structures only after all files have > been closed (fixing use-after-free bugs). Hmm... Shuah is also working on fixing such issues at the media controller stuff, and I made a few fix patches myself. Our work is at: https://git.linuxtv.org/mchehab/experimental.git/log/?h=media_cdev_fix Please base your changes on it, to avoid conflicting work or rework. I just rebased it on the top of media_tree (plus the patches for it that I didn't push yet). Thanks! Mauro > > Signed-off-by: Max Kellermann <max@xxxxxxxxxxx> > --- > drivers/media/media-device.c | 9 +++++++-- > include/media/media-device.h | 2 ++ > 2 files changed, 9 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c > index 5c4669c..a3901f9 100644 > --- a/drivers/media/media-device.c > +++ b/drivers/media/media-device.c > @@ -551,9 +551,14 @@ static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); > * Registration/unregistration > */ > > -static void media_device_release(struct media_devnode *mdev) > +static void media_device_release(struct media_devnode *devnode) > { > - dev_dbg(mdev->parent, "Media device released\n"); > + struct media_device *mdev = to_media_device(devnode); > + > + dev_dbg(devnode->parent, "Media device released\n"); > + > + if (mdev->release) > + mdev->release(mdev); > } > > /** > diff --git a/include/media/media-device.h b/include/media/media-device.h > index d385589..d184d0c 100644 > --- a/include/media/media-device.h > +++ b/include/media/media-device.h > @@ -326,6 +326,8 @@ struct media_device { > > int (*link_notify)(struct media_link *link, u32 flags, > unsigned int notification); > + > + void (*release)(struct media_device *mdev); > }; > > #ifdef CONFIG_MEDIA_CONTROLLER > > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Thanks, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
