counter: ti-ecap-capture: Add check for clk_enable()

Add check for the return value of clk_enable() in order to catch the
potential exception.

Fixes: 4e2f42a ("counter: ti-ecap-capture: capture driver support for ECAP")
Reviewed-by: Julien Panis <[email protected]>
Signed-off-by: Jiasheng Jiang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: William Breathitt Gray <[email protected]>

Author: Jiasheng Jiang

drivers/counter/ti-ecap-capture.c

@@ -574,8 +574,13 @@ static int ecap_cnt_resume(struct device *dev)
 {
 	struct counter_device *counter_dev = dev_get_drvdata(dev);
 	struct ecap_cnt_dev *ecap_dev = counter_priv(counter_dev);
+	int ret;
 
-	clk_enable(ecap_dev->clk);
+	ret = clk_enable(ecap_dev->clk);
+	if (ret) {
+		dev_err(dev, "Cannot enable clock %d\n", ret);
+		return ret;
+	}
 
 	ecap_cnt_capture_set_evmode(counter_dev, ecap_dev->pm_ctx.ev_mode);