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@xxxxxxxxx>
---
drivers/media/platform/timblogiw.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/timblogiw.c b/drivers/media/platform/timblogiw.c
index ccdadd6..fbfdada 100644
--- a/drivers/media/platform/timblogiw.c
+++ b/drivers/media/platform/timblogiw.c
@@ -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;
}
--
1.9.1
--
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