Revert "gpio: Revert regression in sysfs-gpio (gpiolib.c)"

Revert "gpio: Revert regression in sysfs-gpio (gpiolib.c)"

This reverts commit fc328a7d1fcce263db0b046917a66f3aa6e68719.

This commit - while attempting to fix a regression - has caused a number
of other problems. As the fallout from it is more significant than the
initial problem itself, revert it for now before we find a correct
solution.

Link: https://lore.kernel.org/all/[email protected]/
Link: https://lore.kernel.org/stable/[email protected]/
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Bartosz Golaszewski <[email protected]>
Reported-and-bisected-by: Guenter Roeck <[email protected]>
Reported-by: Michael Walle <[email protected]>
Cc: Thorsten Leemhuis <[email protected]>
Cc: Marcelo Roberto Jimenez <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>