Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1364499

[PATCH v3 15/16] usb: musb: da8xx: Use devm in probe

Show all headers | View raw

Simplify things a bit by using devm functions where possible.

Signed-off-by: David Lechner <david@lechnology.com>
---

v3 changes:

* Kept clk variable to minimize noise.


 drivers/usb/musb/da8xx.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index b03d3b8..0c1997c 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -490,20 +490,18 @@ static int da8xx_probe(struct platform_device *pdev)
 	struct da8xx_glue		*glue;
 	struct platform_device_info	pinfo;
 	struct clk			*clk;
+	int				ret;
 
-	int				ret = -ENOMEM;
-
-	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
+	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
 		dev_err(&pdev->dev, "failed to allocate glue context\n");
-		goto err0;
+		return -ENOMEM;
 	}
 
-	clk = clk_get(&pdev->dev, "usb20");
+	clk = devm_clk_get(&pdev->dev, "usb20");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
-		ret = PTR_ERR(clk);
-		goto err3;
+		return PTR_ERR(clk);
 	}
 
 	ret = clk_enable(clk);
@@ -560,12 +558,7 @@ err5:
 	clk_disable(clk);
 
 err4:
-	clk_put(clk);
-
-err3:
-	kfree(glue);
 
-err0:
 	return ret;
 }
 
@@ -576,8 +569,6 @@ static int da8xx_remove(struct platform_device *pdev)
 	platform_device_unregister(glue->musb);
 	usb_phy_generic_unregister(glue->phy);
 	clk_disable(glue->clk);
-	clk_put(glue->clk);
-	kfree(glue);
 
 	return 0;
 }
-- 
1.9.1

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v3 00/16] da8xx USB clocks David Lechner <david@lechnology.com> - 2016-03-25 01:00 +0100
  [PATCH v3 15/16] usb: musb: da8xx: Use devm in probe David Lechner <david@lechnology.com> - 2016-03-25 01:00 +0100
    Re: [PATCH v3 15/16] usb: musb: da8xx: Use devm in probe Bin Liu <b-liu@ti.com> - 2016-04-01 00:30 +0200
      Re: [PATCH v3 15/16] usb: musb: da8xx: Use devm in probe David Lechner <david@lechnology.com> - 2016-04-01 00:30 +0200
        Re: [PATCH v3 15/16] usb: musb: da8xx: Use devm in probe Bin Liu <b-liu@ti.com> - 2016-04-01 17:00 +0200
      Re: [PATCH v3 15/16] usb: musb: da8xx: Use devm in probe Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-04-01 12:40 +0200
  [PATCH v3 11/16] ARM: davinci: da8xx: Add USB PHY platform declaration David Lechner <david@lechnology.com> - 2016-03-25 01:00 +0100
  [PATCH v3 12/16] ARM: dt: da850: Add cfgchip syscon node David Lechner <david@lechnology.com> - 2016-03-25 01:00 +0100
  [PATCH v3 07/16] ARM: davinci: da8xx: add usb phy clocks David Lechner <david@lechnology.com> - 2016-03-25 01:00 +0100
  [PATCH v3 13/16] ARM: dt: da850: Add usb phy node David Lechner <david@lechnology.com> - 2016-03-25 01:00 +0100

csiph-web