gpio: ftgpio: Remove unneeded ERROR check before clk_disable_unprepare

clk_disable_unprepare() already checks ERROR by using IS_ERR_OR_NULL.
Remove unneeded ERROR check for g->clk.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

drivers/gpio/gpio-ftgpio010.c

@@ -315,8 +315,8 @@ static int ftgpio_gpio_probe(struct platform_device *pdev)
 	return 0;
 
 dis_clk:
-	if (!IS_ERR(g->clk))
+	clk_disable_unprepare(g->clk);
-		clk_disable_unprepare(g->clk);
+
 	return ret;
 }
 
@@ -324,8 +324,8 @@ static int ftgpio_gpio_remove(struct platform_device *pdev)
 {
 	struct ftgpio_gpio *g = platform_get_drvdata(pdev);
 
-	if (!IS_ERR(g->clk))
+	clk_disable_unprepare(g->clk);
-		clk_disable_unprepare(g->clk);
+
 	return 0;
 }