From: Khouloud Touil ktouil@baylibre.com
commit a9c3766cb19cdadf2776aba41b64470002645894 upstream.
Put the write-protect GPIO descriptor in nvmem_release() so that it can be automatically released when the associated device's reference count drops to 0.
Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin") Reported-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Khouloud Touil ktouil@baylibre.com Cc: stable stable@vger.kernel.org [Bartosz: tweak the commit message] Signed-off-by: Bartosz Golaszewski bgolaszewski@baylibre.com Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Link: https://lore.kernel.org/r/20200310132257.23358-8-srinivas.kandagatla@linaro.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/nvmem/core.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -72,6 +72,7 @@ static void nvmem_release(struct device struct nvmem_device *nvmem = to_nvmem_device(dev);
ida_simple_remove(&nvmem_ida, nvmem->id); + gpiod_put(nvmem->wp_gpio); kfree(nvmem); }