Input: s3c2410_ts - handle return value of clk_prepare_enable

clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <[e-mail]>
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/touchscreen/s3c2410_ts.c

···
 		return -ENOENT;
 	}
 
-	clk_prepare_enable(ts.clock);
+	ret = clk_prepare_enable(ts.clock);
+	if (ret) {
+		dev_err(dev, "Failed! to enabled clocks\n");
+		goto err_clk_get;
+	}
 	dev_dbg(dev, "got and enabled clocks\n");
 
 	ts.irq_tc = ret = platform_get_irq(pdev, 0);
···
  err_iomap:
 	iounmap(ts.io);
  err_clk:
+	clk_disable_unprepare(ts.clock);
 	del_timer_sync(&touch_timer);
+ err_clk_get:
 	clk_put(ts.clock);
 	return ret;
 }