@@ -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;
}
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> --- drivers/media/platform/timblogiw.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)