staging: wfx: take advantage of IS_ERR_OR_NULL()

Obviously, current code can be replaced by IS_ERR_OR_NULL().

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-16-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/wfx/main.c b/drivers/staging/wfx/main.c
index 3b47b6c21ea13ff2697a63b0205c6ae480584c13..cf4bcb14a12d20b828888f0d7c0aabcff5ce6145 100644 (file)
--- a/drivers/staging/wfx/main.c
+++ b/drivers/staging/wfx/main.c
@@ -182,7 +182,7 @@ struct gpio_desc *wfx_get_gpio(struct device *dev, int override,
        } else {
                ret = devm_gpiod_get(dev, label, GPIOD_OUT_LOW);
        }
-       if (IS_ERR(ret) || !ret) {
+       if (IS_ERR_OR_NULL(ret)) {
                if (!ret || PTR_ERR(ret) == -ENOENT)
                        dev_warn(dev, "gpio %s is not defined\n", label);
                else