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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/drivers/gpu/drm/msm/msm_perf.c
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@@ -1,18 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2013 Red Hat
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  * Author: Rob Clark <robdclark@gmail.com>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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 /* For profiling, userspace can:
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@@ -26,6 +15,9 @@
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 #ifdef CONFIG_DEBUG_FS
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 #include <linux/debugfs.h>
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+#include <linux/uaccess.h>
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+
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+#include <drm/drm_file.h>
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 #include "msm_drv.h"
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 #include "msm_gpu.h"
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@@ -205,7 +197,6 @@
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 {
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 	struct msm_drm_private *priv = minor->dev->dev_private;
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 	struct msm_perf_state *perf;
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-	struct dentry *ent;
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 	/* only create on first minor: */
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 	if (priv->perf)
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@@ -220,19 +211,9 @@
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 	mutex_init(&perf->read_lock);
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 	priv->perf = perf;
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-	ent = debugfs_create_file("perf", S_IFREG | S_IRUGO,
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-			minor->debugfs_root, perf, &perf_debugfs_fops);
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-	if (!ent) {
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-		DRM_ERROR("Cannot create /sys/kernel/debug/dri/%pd/perf\n",
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-				minor->debugfs_root);
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-		goto fail;
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-	}
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-
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+	debugfs_create_file("perf", S_IFREG | S_IRUGO, minor->debugfs_root,
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+			    perf, &perf_debugfs_fops);
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 	return 0;
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-
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-fail:
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-	msm_perf_debugfs_cleanup(priv);
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-	return -1;
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 }
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 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv)