nvmem: fix a 'makes pointer from integer without a cast' build warning

nvmem_register() returns a pointer, not a long int. Use ERR_CAST() to
cast the struct gpio_desc pointer to struct nvmem_device.

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 3e1c94c..408ce70 100644 (file)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -351,7 +351,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
                nvmem->wp_gpio = gpiod_get_optional(config->dev, "wp",
                                                    GPIOD_OUT_HIGH);
        if (IS_ERR(nvmem->wp_gpio))
-               return PTR_ERR(nvmem->wp_gpio);
+               return ERR_CAST(nvmem->wp_gpio);
 
 
        kref_init(&nvmem->refcnt);