Re: [PATCH v4] uio: Fix uio driver to refcount device

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Thu, Mar 19, 2015 at 01:16:13PM +0000, Brian Russell wrote:
> Protect uio driver from its owner being unplugged while there are open fds.
> Embed struct device in struct uio_device, use refcounting on device, free
> uio_device on release.
> info struct passed in uio_register_device can be freed on unregister, so null
> out the field in uio_urnegister_device and check accesses.
> 
> Signed-off-by: Brian Russell <brussell@brocade.com>
> ---
>  drivers/uio/uio.c          | 63 +++++++++++++++++++++++++++++++---------------
>  include/linux/uio_driver.h |  2 +-
>  2 files changed, 44 insertions(+), 21 deletions(-)

when sending new versions, you need to list down here what changed from
the previous version.  Please send a v5 with that, as I don't see what
changed between v3 and v4 very easily.

thanks,

greg k-h