linux-kernel - [PATCH 6/8] EDAC: mpc85xx: Use static attribute groups for sysfs entries

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Date:	Wed,  4 Feb 2015 11:48:56 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	linux-edac@...r.kernel.org
Cc:	Doug Thompson <dougthompson@...ssion.com>,
	Borislav Petkov <bp@...en8.de>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 6/8] EDAC: mpc85xx: Use static attribute groups for sysfs entries

... instead of manual device_create_file() and device_remove_file()
calls.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
---
 drivers/edac/mpc85xx_edac.c | 38 ++++++++------------------------------
 1 file changed, 8 insertions(+), 30 deletions(-)

diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index ffb1a9a15ccd..4b93a9062161 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -134,29 +134,14 @@ DEVICE_ATTR(inject_data_lo, S_IRUGO | S_IWUSR,
 DEVICE_ATTR(inject_ctrl, S_IRUGO | S_IWUSR,
 	    mpc85xx_mc_inject_ctrl_show, mpc85xx_mc_inject_ctrl_store);
 
-static int mpc85xx_create_sysfs_attributes(struct mem_ctl_info *mci)
-{
-	int rc;
-
-	rc = device_create_file(&mci->dev, &dev_attr_inject_data_hi);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_data_lo);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_ctrl);
-	if (rc < 0)
-		return rc;
+static struct attribute *mpc85xx_dev_attrs[] = {
+	&dev_attr_inject_data_hi.attr,
+	&dev_attr_inject_data_lo.attr,
+	&dev_attr_inject_ctrl.attr,
+	NULL
+};
 
-	return 0;
-}
-
-static void mpc85xx_remove_sysfs_attributes(struct mem_ctl_info *mci)
-{
-	device_remove_file(&mci->dev, &dev_attr_inject_data_hi);
-	device_remove_file(&mci->dev, &dev_attr_inject_data_lo);
-	device_remove_file(&mci->dev, &dev_attr_inject_ctrl);
-}
+ATTRIBUTE_GROUPS(mpc85xx_dev);
 
 /**************************** PCI Err device ***************************/
 #ifdef CONFIG_PCI
@@ -1106,13 +1091,7 @@ static int mpc85xx_mc_err_probe(struct platform_device *op)
 	/* clear all error bits */
 	out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT, ~0);
 
-	if (edac_mc_add_mc(mci)) {
-		edac_dbg(3, "failed edac_mc_add_mc()\n");
-		goto err;
-	}
-
-	if (mpc85xx_create_sysfs_attributes(mci)) {
-		edac_mc_del_mc(mci->pdev);
+	if (edac_mc_add_mc_with_groups(mci, mpc85xx_dev_groups)) {
 		edac_dbg(3, "failed edac_mc_add_mc()\n");
 		goto err;
 	}
@@ -1176,7 +1155,6 @@ static int mpc85xx_mc_err_remove(struct platform_device *op)
 		 orig_ddr_err_disable);
 	out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_SBE, orig_ddr_err_sbe);
 
-	mpc85xx_remove_sysfs_attributes(mci);
 	edac_mc_del_mc(&op->dev);
 	edac_mc_free(mci);
 	return 0;
-- 
2.2.2

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