gpio: devres: Handle nonexclusive GPIOs

When we get a nonexeclusive GPIO descriptor using managed
resources, we should only add it to the list of managed
resources once: on the first user. Augment the
devm_gpiod_get_index() and devm_gpiod_get_from_of_node()
calls to account for this by checking if the descriptor
is already resource managed before we proceed to allocate
a new resource management struct.

Fixes: b0ce7b29bfcd ("regulator/gpio: Allow nonexclusive GPIO access")
Reported-by: Marek Szyprowski <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Marek Szyprowski <[email protected]>
Tested-by: Marek Szyprowski <[email protected]>
Reviewed-by: Charles Keepax <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

0 files changed, 0 insertions, 0 deletions