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uio: uio_fsl_elbc_gpcm: convert platform driver to use dev_groups

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Platform drivers now have the option to have the platform core create
and remove any needed sysfs attribute files.  So take advantage of that
and do not register "by hand" a sysfs group of attributes.

Link: https://lore.kernel.org/r/20190731124349.4474-3-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2019-07-31 14:43:41 +02:00
parent 97e2551de3
commit 0682e005d1
1 changed files with 8 additions and 15 deletions
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23
drivers/uio/uio_fsl_elbc_gpcm.c
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@ -71,6 +71,13 @@ static ssize_t reg_store(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(reg_br, 0664, reg_show, reg_store);
static DEVICE_ATTR(reg_or, 0664, reg_show, reg_store);
static struct attribute *uio_fsl_elbc_gpcm_attrs[] = {
&dev_attr_reg_br.attr,
&dev_attr_reg_or.attr,
NULL,
};
ATTRIBUTE_GROUPS(uio_fsl_elbc_gpcm);
static ssize_t reg_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@ -411,25 +418,12 @@ static int uio_fsl_elbc_gpcm_probe(struct platform_device *pdev)
/* store private data */
platform_set_drvdata(pdev, info);
/* create sysfs files */
ret = device_create_file(priv->dev, &dev_attr_reg_br);
if (ret)
goto out_err3;
ret = device_create_file(priv->dev, &dev_attr_reg_or);
if (ret)
goto out_err4;
dev_info(priv->dev,
"eLBC/GPCM device (%s) at 0x%llx, bank %d, irq=%d\n",
priv->name, (unsigned long long)res.start, priv->bank,
irq != NO_IRQ ? irq : -1);
return 0;
out_err4:
device_remove_file(priv->dev, &dev_attr_reg_br);
out_err3:
platform_set_drvdata(pdev, NULL);
uio_unregister_device(info);
out_err2:
if (priv->shutdown)
priv->shutdown(info, true);
@ -448,8 +442,6 @@ static int uio_fsl_elbc_gpcm_remove(struct platform_device *pdev)
struct uio_info *info = platform_get_drvdata(pdev);
struct fsl_elbc_gpcm *priv = info->priv;
device_remove_file(priv->dev, &dev_attr_reg_or);
device_remove_file(priv->dev, &dev_attr_reg_br);
platform_set_drvdata(pdev, NULL);
uio_unregister_device(info);
if (priv->shutdown)
@ -474,6 +466,7 @@ static struct platform_driver uio_fsl_elbc_gpcm_driver = {
.driver = {
.name = "fsl,elbc-gpcm-uio",
.of_match_table = uio_fsl_elbc_gpcm_match,
.dev_groups = uio_fsl_elbc_gpcm_groups,
},
.probe = uio_fsl_elbc_gpcm_probe,
.remove = uio_fsl_elbc_gpcm_remove,