GPIO fixes for the v4.10 series:

- Move free:ing of GPIO hogs to after free:ing the device
  to get rid of a warning state.

- A small comile warning fix.
-----BEGIN PGP SIGNATURE-----

iQIcBAABAgAGBQJYc5BKAAoJEEEQszewGV1zLSkP/0DzvkhrTWwyc59eJoDPa8YD
FHauEokwOLmTgzaErafeAmbY7BYkNyDLNSupKyQEXg39DTQZZYOeA++VPcZGlnSC
Pc5Xb38dy9hbdLvas/QNl6Ft1yqB5q4R3Uamv1LH8D+VRlJxpmm85CBl1LA5R69M
O902jrnplxFvF5qux0z3xBwrbFuafgaO9cvOaZyUS7NdwK1QSD45lekczLZmETM+
9VGZCaAeNJC7oLu+7h99TxVI0ClqciwS7jX+H+G4GwgnwNf/jYpmLxoULKZQK7iY
OSx/X5A10MEQESRmsqYHpBlJPvPMVL3YTRWFjpLcCmU+hSTWTja7FzSZlkP0p7Yw
3RtKivYVZM0eW4rpWcVgyydEDx4OVCwkVPpxTGiqc3RRbSm9vakWnKKTa6OvigXH
FtRCWSZ2fYnc+SBHsW7qORFmEBEQnXuIoNLhnKD3tthCTiZeG0S+4STXYwJIxic8
RhX30D0nMNY8lzrtQ9Pys8T7PSabu6boE0usZ+1sUxQmabUgsoRRjzyQE8Qd4BYj
4QyJBAdnZ+u/ArAkyeB375g71azebHQuRMw1z36MYNv9l+sM5gZ/f93bOouFwQnF
e0ZTNWoTqVdgM38qj9Y7m8UjYVCpCcPFB6uGeD9xurdH61/XgEtvGSlMr6/SQQyO
e12eb7CIJjaiokXUCzUN
=NGjC
-----END PGP SIGNATURE-----
gpio: Move freeing of GPIO hogs before numbing of the device

When removing a gpiochip that uses GPIO hogging (e.g. by unloading the
chip's DT overlay), a warning is printed:

    gpio gpiochip8: REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED

This happens because gpiochip_free_hogs() is called after the gdev->chip
pointer is reset to NULL. Hence __gpiod_free() cannot determine the
chip in use, and cannot clear flags nor call the optional chip-specific
.free() callback.

Move the call to gpiochip_free_hogs() up to fix this.

Cc: stable@vger.kernel.org
Fixes: ff2b135922992756 ("gpio: make the gpiochip a real device")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1 file changed