gpio: Revert regression in sysfs-gpio (gpiolib.c)
authorMarcelo Roberto Jimenez <marcelo.jimenez@gmail.com>
Mon, 7 Mar 2022 09:57:24 +0000 (10:57 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 8 Apr 2022 12:22:47 +0000 (14:22 +0200)
commita28571fcc422342c72d531ac4cc0991af98eb8eb
tree15833be0349183f96e8ad893e6aca1be17306e90
parentcd3121310e33a2584d7695206a656295d7d893d3
gpio: Revert regression in sysfs-gpio (gpiolib.c)

[ Upstream commit fc328a7d1fcce263db0b046917a66f3aa6e68719 ]

Some GPIO lines have stopped working after the patch
commit 2ab73c6d8323f ("gpio: Support GPIO controllers without pin-ranges")

And this has supposedly been fixed in the following patches
commit 89ad556b7f96a ("gpio: Avoid using pin ranges with !PINCTRL")
commit 6dbbf84603961 ("gpiolib: Don't free if pin ranges are not defined")

But an erratic behavior where some GPIO lines work while others do not work
has been introduced.

This patch reverts those changes so that the sysfs-gpio interface works
properly again.

Signed-off-by: Marcelo Roberto Jimenez <marcelo.jimenez@gmail.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpio/gpiolib.c