[PATCH 1/2] Input: at32psif: handle clk_enable return value

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We should print the err if clk_enable failed.

Signed-off-by: WEN Pingbo <pingbo.wen@xxxxxxxxxx>
---
 drivers/input/serio/at32psif.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/input/serio/at32psif.c b/drivers/input/serio/at32psif.c
index 2e4ff5b..aebb996 100644
--- a/drivers/input/serio/at32psif.c
+++ b/drivers/input/serio/at32psif.c
@@ -185,6 +185,7 @@ static void psif_set_prescaler(struct psif *psif)
 {
 	unsigned long prscv;
 	unsigned long rate = clk_get_rate(psif->pclk);
+	int retval;
 
 	/* PRSCV = Pulse length (100 us) * PSIF module frequency. */
 	prscv = 100 * (rate / 1000000UL);
@@ -195,7 +196,10 @@ static void psif_set_prescaler(struct psif *psif)
 				"prescaler set to max\n");
 	}
 
-	clk_enable(psif->pclk);
+	retval = clk_enable(psif->pclk);
+	if (retval < 0)
+		dev_err(&psif->pdev->dev,
+			"could not enable pclk, ret %d\n", retval);
 	psif_writel(psif, PSR, prscv);
 	clk_disable(psif->pclk);
 }
-- 
1.9.1

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