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

From: Greg Kroah-Hartman
Date: Thu Mar 19 2015 - 09:21:43 EST

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@xxxxxxxxxxx>
> ---
> 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.


greg k-h
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