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[media] timblogiw: 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.The label err_register is removed as it is 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: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Himangi Saraogi 2014-05-07 01:44:18 -03:00 committed by Mauro Carvalho Chehab
parent 26ac69f88d
commit 30616fff65
1 changed files with 2 additions and 6 deletions
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8
drivers/media/platform/timblogiw.c
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@ -800,7 +800,7 @@ static int timblogiw_probe(struct platform_device *pdev)
if (!pdata->encoder.module_name)
dev_info(&pdev->dev, "Running without decoder\n");
lw = kzalloc(sizeof(*lw), GFP_KERNEL);
lw = devm_kzalloc(&pdev->dev, sizeof(*lw), GFP_KERNEL);
if (!lw) {
err = -ENOMEM;
goto err;
@ -820,7 +820,7 @@ static int timblogiw_probe(struct platform_device *pdev)
strlcpy(lw->v4l2_dev.name, DRIVER_NAME, sizeof(lw->v4l2_dev.name));
err = v4l2_device_register(NULL, &lw->v4l2_dev);
if (err)
goto err_register;
goto err;
lw->video_dev.v4l2_dev = &lw->v4l2_dev;
@ -837,8 +837,6 @@ static int timblogiw_probe(struct platform_device *pdev)
err_request:
v4l2_device_unregister(&lw->v4l2_dev);
err_register:
kfree(lw);
err:
dev_err(&pdev->dev, "Failed to register: %d\n", err);
@ -853,8 +851,6 @@ static int timblogiw_remove(struct platform_device *pdev)
v4l2_device_unregister(&lw->v4l2_dev);
kfree(lw);
return 0;
}