From: Himangi Saraogi <himangi774@gmail.com>
Date: Sat, 10 May 2014 18:49:00 +0000 (+0530)
Subject: hwrng: n2-drv - Introduce the use of the managed version of kzalloc
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~91^2~2^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0118a552137506a68ac062981967d8b5147e6028;p=pandora-kernel.git

hwrng: n2-drv - Introduce the use of the managed version of kzalloc

This patch moves data allocated using kzalloc to managed data allocated
using devm_kzalloc and cleans now unnecessary kfrees in probe and remove
functions. The NULL assignment to np->units is removed as there is no
interaction between this field and sun4v_hvapi_unregister. Also, the
labels out_free_units and out_free are removed as they are no longer
required.

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>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

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