Commit a9c3766c authored Mar 10, 2020 by Khouloud Touil Committed by Greg Kroah-Hartman Mar 19, 2020

nvmem: release the write-protect pin



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: 2a127da4 ("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.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent f7d8d7dc

drivers/nvmem/core.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -72,6 +72,7 @@ static void nvmem_release(struct device *dev)
		struct nvmem_device *nvmem = to_nvmem_device(dev);

		ida_simple_remove(&nvmem_ida, nvmem->id);
		gpiod_put(nvmem->wp_gpio);
		kfree(nvmem);
		}

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