On Wed, Jan 28, 2015 at 05:05:05PM +0100, Johan Hovold wrote:
> commit 0915e6feb38de8d3601819992a5bd050201a56fa upstream.
>
> The gpio device attributes were never destroyed when the gpio was
> unexported (or on export failures).
>
> Use device_create_with_groups() to create the default device attributes
> of the gpio class device. Note that this also fixes the
> attribute-creation race with userspace for these attributes.
>
> Remove contingent attributes in export error path and on unexport.
>
> Fixes: d8f388d8dc8d ("gpio: sysfs interface")
> Cc: stable <stable@xxxxxxxxxxxxxxx> # v2.6.27+
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
>
> Backport to v3.10 (and earlier) which lacks device_create_with_groups().
>
> Changes since v1
> - fix mistake in backport, which removed the attributes while holding
> the mutex in gpiod_unexport (reported by Luis Henriques)
Thanks for the updated patch, now replaced the old one with this one.
greg k-h
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