From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Tue, 30 May 2017 16:44:28 +0000 (-0700)
Subject: Input: s3c2410_ts - handle return value of clk_prepare_enable
X-Git-Tag: v4.13-rc1~90^2^2~8
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=086cebfa72fa22e1e49f251d33fe1ceaab4af2d4;p=karo-tx-linux.git

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 <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 41d58e88cc8a..3b3db8c868e0 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -264,7 +264,11 @@ static int s3c2410ts_probe(struct platform_device *pdev)
 		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);
@@ -353,7 +357,9 @@ static int s3c2410ts_probe(struct platform_device *pdev)
  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;
 }