[PATCH v2] Input: bcm-keypad - Simplify with dev_err_probe()

[Krzysztof Kozlowski <krzk@kernel.org>]

Common pattern of handling deferred probe can be simplified with
dev_err_probe() and devm_clk_get_optional().  Less code and the error
value gets printed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

---

Changes since v1:
1. Use also devm_clk_get_optional()
---
 drivers/input/keyboard/bcm-keypad.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/input/keyboard/bcm-keypad.c b/drivers/input/keyboard/bcm-keypad.c
index 2b771c3a5578..23e11b4efd13 100644
--- a/drivers/input/keyboard/bcm-keypad.c
+++ b/drivers/input/keyboard/bcm-keypad.c
@@ -376,17 +376,11 @@ static int bcm_kp_probe(struct platform_device *pdev)
 		return PTR_ERR(kp->base);
 
 	/* Enable clock */
-	kp->clk = devm_clk_get(&pdev->dev, "peri_clk");
+	kp->clk = devm_clk_get_optional(&pdev->dev, "peri_clk");
 	if (IS_ERR(kp->clk)) {
-		error = PTR_ERR(kp->clk);
-		if (error != -ENOENT) {
-			if (error != -EPROBE_DEFER)
-				dev_err(&pdev->dev, "Failed to get clock\n");
-			return error;
-		}
-		dev_dbg(&pdev->dev,
-			"No clock specified. Assuming it's enabled\n");
-		kp->clk = NULL;
+		return dev_err_probe(&pdev->dev, error, "Failed to get clock\n");
+	} else if (!kp->clk) {
+		dev_dbg(&pdev->dev, "No clock specified. Assuming it's enabled\n");
 	} else {
 		unsigned int desired_rate;
 		long actual_rate;
-- 
2.17.1