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ehea: Introduce the use of the managed version of kzalloc

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This patch moves data allocated using kzalloc to managed data allocated
using devm_kzalloc and cleans now unnecessary kfrees in probe and remove
functions. Also, linux/device.h is added to make sure the devm_*()
routine declarations are unambiguously available.

The following Coccinelle semantic patch was used for making the change:

@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e, e1, e2;
@@
probefn(struct platform_device *pdev, ...) {
  <+...
- e = kzalloc(e1, e2)
+ e = devm_kzalloc(&pdev->dev, e1, e2)
  ...
?-kfree(e);
  ...+>
}

@rem depends on prb@
identifier platform.removefn;
expression e;
@@
removefn(...) {
  <...
- kfree(e);
  ...>
}

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Compile-Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Himangi Saraogi 2014-05-28 19:53:09 +05:30 committed by David S. Miller
parent c3aad35e48
commit 09b38aa1e7
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/ibm/ehea/ehea_main.c
View File

@ -28,6 +28,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/device.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
@ -3273,7 +3274,7 @@ static int ehea_probe_adapter(struct platform_device *dev)
return -EINVAL;
}
adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
adapter = devm_kzalloc(&dev->dev, sizeof(*adapter), GFP_KERNEL);
if (!adapter) {
ret = -ENOMEM;
dev_err(&dev->dev, "no mem for ehea_adapter\n");
@ -3359,7 +3360,6 @@ static int ehea_probe_adapter(struct platform_device *dev)
out_free_ad:
list_del(&adapter->list);
kfree(adapter);
out:
ehea_update_firmware_handles();
@ -3386,7 +3386,6 @@ static int ehea_remove(struct platform_device *dev)
ehea_destroy_eq(adapter->neq);
ehea_remove_adapter_mr(adapter);
list_del(&adapter->list);
kfree(adapter);
ehea_update_firmware_handles();