linux-kernel - [PATCH 1/4] drivers/spi/spi-sh-hspi.c: drop frees of devm

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Date:	Sat,  1 Sep 2012 18:33:08 +0200
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	Grant Likely <grant.likely@...retlab.ca>,
	broonie@...nsource.wolfsonmicro.com
Cc:	kernel-janitors@...r.kernel.org,
	spi-devel-general@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] drivers/spi/spi-sh-hspi.c: drop frees of devm_ alloc'd data

From: Julia Lawall <Julia.Lawall@...6.fr>

devm free functions should not have to be explicitly used.

A semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
@@

(
* devm_kfree(...);
|
* devm_free_irq(...);
|
* devm_iounmap(...);
|
* devm_release_region(...);
|
* devm_release_mem_region(...);
)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
 drivers/spi/spi-sh-hspi.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index 934138c..796c077 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -283,7 +283,7 @@ static int __devinit hspi_probe(struct platform_device *pdev)
 	ret = spi_register_master(master);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "spi_register_master error.\n");
-		goto error2;
+		goto error1;
 	}
 
 	pm_runtime_enable(&pdev->dev);
@@ -292,8 +292,6 @@ static int __devinit hspi_probe(struct platform_device *pdev)
 
 	return 0;
 
- error2:
-	devm_iounmap(hspi->dev, hspi->addr);
  error1:
 	clk_put(clk);
  error0:
@@ -310,7 +308,6 @@ static int __devexit hspi_remove(struct platform_device *pdev)
 
 	clk_put(hspi->clk);
 	spi_unregister_master(hspi->master);
-	devm_iounmap(hspi->dev, hspi->addr);
 
 	return 0;
 }

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