[PATCH v2] net: mv643xx_eth: use managed devm_kzalloc

From: Sebastian Hesselbarth
Date: Wed Apr 10 2013 - 16:42:25 EST


This patch moves shared private data kzalloc to managed devm_kzalloc and
cleans now unneccessary kfree and error handling.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
---
Changes from v1:
- replaced EADDRNOTAVAIL with ENOMEM on failing ioremap (Reported by
Sergei Shtylyov)

Cc: Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>
Cc: Andrew Lunn <andrew@xxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Florian Fainelli <florian@xxxxxxxxxxx>
Cc: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
drivers/net/ethernet/marvell/mv643xx_eth.c | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index bbe6104..305038f 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2547,25 +2547,22 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
struct mv643xx_eth_shared_private *msp;
const struct mbus_dram_target_info *dram;
struct resource *res;
- int ret;

if (!mv643xx_eth_version_printed++)
pr_notice("MV-643xx 10/100/1000 ethernet driver version %s\n",
mv643xx_eth_driver_version);

- ret = -EINVAL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL)
- goto out;
+ return -EINVAL;

- ret = -ENOMEM;
- msp = kzalloc(sizeof(*msp), GFP_KERNEL);
+ msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL);
if (msp == NULL)
- goto out;
+ return -ENOMEM;

msp->base = ioremap(res->start, resource_size(res));
if (msp->base == NULL)
- goto out_free;
+ return -ENOMEM;

msp->clk = devm_clk_get(&pdev->dev, NULL);
if (!IS_ERR(msp->clk))
@@ -2585,11 +2582,6 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, msp);

return 0;
-
-out_free:
- kfree(msp);
-out:
- return ret;
}

static int mv643xx_eth_shared_remove(struct platform_device *pdev)
@@ -2599,7 +2591,6 @@ static int mv643xx_eth_shared_remove(struct platform_device *pdev)
iounmap(msp->base);
if (!IS_ERR(msp->clk))
clk_disable_unprepare(msp->clk);
- kfree(msp);

return 0;
}
--
1.7.10.4

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