add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/char/bsr.c
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@@ -1,22 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /* IBM POWER Barrier Synchronization Register Driver
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  *
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  * Copyright IBM Corporation 2008
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  *
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  * Author: Sonny Rao <sonnyrao@us.ibm.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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  */
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 #include <linux/kernel.h>
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@@ -30,7 +17,6 @@
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 #include <linux/list.h>
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 #include <linux/mm.h>
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 #include <linux/slab.h>
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-#include <asm/pgtable.h>
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 #include <asm/io.h>
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 /*
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@@ -147,7 +133,7 @@
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 	return 0;
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 }
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-static int bsr_open(struct inode * inode, struct file * filp)
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+static int bsr_open(struct inode *inode, struct file *filp)
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 {
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 	struct cdev *cdev = inode->i_cdev;
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 	struct bsr_dev *dev = container_of(cdev, struct bsr_dev, bsr_cdev);
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@@ -322,7 +308,8 @@
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 		goto out_err_2;
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 	}
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-	if ((ret = bsr_create_devs(np)) < 0) {
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+	ret = bsr_create_devs(np);
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+	if (ret < 0) {
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 		np = NULL;
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 		goto out_err_3;
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 	}