linux-kernel - [PATCH] crypto: atmel-tdes: Switch to managed version of kzalloc

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Message-Id: <1406269221-20087-1-git-send-email-pramod.gurav@smartplayin.com>
Date:	Fri, 25 Jul 2014 11:50:21 +0530
From:	pramod.gurav.etc@...il.com
To:	linux-kernel@...r.kernel.org
Cc:	Pramod Gurav <pramod.gurav@...rtplayin.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>
Subject: [PATCH] crypto: atmel-tdes: Switch to managed version of kzalloc

From: Pramod Gurav <pramod.gurav@...rtplayin.com>

This patch switches data allocation from kzalloc to devm_kzalloc.
It also removes some kfree() on data that was earlier allocated
using devm_kzalloc() from probe as well as remove funtions.

CC: Grant Likely <grant.likely@...aro.org>
CC: Rob Herring <robh+dt@...nel.org>

Signed-off-by: Pramod Gurav <pramod.gurav@...rtplayin.com>
---
 drivers/crypto/atmel-tdes.c |    8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index 6cde5b5..d3a9041 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -1337,7 +1337,6 @@ static struct crypto_platform_data *atmel_tdes_of_init(struct platform_device *p
 					GFP_KERNEL);
 	if (!pdata->dma_slave) {
 		dev_err(&pdev->dev, "could not allocate memory for dma_slave\n");
-		devm_kfree(&pdev->dev, pdata);
 		return ERR_PTR(-ENOMEM);
 	}
 
@@ -1359,7 +1358,7 @@ static int atmel_tdes_probe(struct platform_device *pdev)
 	unsigned long tdes_phys_size;
 	int err;
 
-	tdes_dd = kzalloc(sizeof(struct atmel_tdes_dev), GFP_KERNEL);
+	tdes_dd = devm_kmalloc(&pdev->dev, sizeof(*tdes_dd), GFP_KERNEL);
 	if (tdes_dd == NULL) {
 		dev_err(dev, "unable to alloc data struct.\n");
 		err = -ENOMEM;
@@ -1483,8 +1482,6 @@ tdes_irq_err:
 res_err:
 	tasklet_kill(&tdes_dd->done_task);
 	tasklet_kill(&tdes_dd->queue_task);
-	kfree(tdes_dd);
-	tdes_dd = NULL;
 tdes_dd_err:
 	dev_err(dev, "initialization failed.\n");
 
@@ -1519,9 +1516,6 @@ static int atmel_tdes_remove(struct platform_device *pdev)
 	if (tdes_dd->irq >= 0)
 		free_irq(tdes_dd->irq, tdes_dd);
 
-	kfree(tdes_dd);
-	tdes_dd = NULL;
-
 	return 0;
 }
 
-- 
1.7.9.5

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