[PATCH v3 4/7] nvmem: release the write-protect pin

From: Bartosz Golaszewski
Date: Wed Feb 19 2020 - 04:22:30 EST


From: Khouloud Touil <ktouil@xxxxxxxxxxxx>

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@xxxxxxxxxxxxxx>
Signed-off-by: Khouloud Touil <ktouil@xxxxxxxxxxxx>
[Bartosz: tweak the commit message]
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
---
drivers/nvmem/core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 4e6daaa2b0f6..c718ed7859e8 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -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);
}

--
2.25.0