change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/leds/led-class-flash.c
..
..
@@ -1,12 +1,9 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * LED Flash class interface
3
4
  *
4
5
  * Copyright (C) 2015 Samsung Electronics Co., Ltd.
5
6
  * Author: Jacek Anaszewski <j.anaszewski@samsung.com>
6
- *
7
- * This program is free software; you can redistribute it and/or modify
8
- * it under the terms of the GNU General Public License version 2 as
9
- * published by the Free Software Foundation.
10
7
  */
11
8
 
12
9
 #include <linux/device.h>
..
..
@@ -285,8 +282,9 @@
285
282
 	led_cdev->groups = flash_groups;
286
283
 }
287
284
 
288
-int led_classdev_flash_register(struct device *parent,
289
-				struct led_classdev_flash *fled_cdev)
285
+int led_classdev_flash_register_ext(struct device *parent,
286
+				    struct led_classdev_flash *fled_cdev,
287
+				    struct led_init_data *init_data)
290
288
 {
291
289
 	struct led_classdev *led_cdev;
292
290
 	const struct led_flash_ops *ops;
..
..
@@ -312,13 +310,13 @@
312
310
 	}
313
311
 
314
312
 	/* Register led class device */
315
-	ret = led_classdev_register(parent, led_cdev);
313
+	ret = led_classdev_register_ext(parent, led_cdev, init_data);
316
314
 	if (ret < 0)
317
315
 		return ret;
318
316
 
319
317
 	return 0;
320
318
 }
321
-EXPORT_SYMBOL_GPL(led_classdev_flash_register);
319
+EXPORT_SYMBOL_GPL(led_classdev_flash_register_ext);
322
320
 
323
321
 void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev)
324
322
 {
..
..
@@ -329,6 +327,56 @@
329
327
 }
330
328
 EXPORT_SYMBOL_GPL(led_classdev_flash_unregister);
331
329
 
330
+static void devm_led_classdev_flash_release(struct device *dev, void *res)
331
+{
332
+	led_classdev_flash_unregister(*(struct led_classdev_flash **)res);
333
+}
334
+
335
+int devm_led_classdev_flash_register_ext(struct device *parent,
336
+				     struct led_classdev_flash *fled_cdev,
337
+				     struct led_init_data *init_data)
338
+{
339
+	struct led_classdev_flash **dr;
340
+	int ret;
341
+
342
+	dr = devres_alloc(devm_led_classdev_flash_release, sizeof(*dr),
343
+			  GFP_KERNEL);
344
+	if (!dr)
345
+		return -ENOMEM;
346
+
347
+	ret = led_classdev_flash_register_ext(parent, fled_cdev, init_data);
348
+	if (ret) {
349
+		devres_free(dr);
350
+		return ret;
351
+	}
352
+
353
+	*dr = fled_cdev;
354
+	devres_add(parent, dr);
355
+
356
+	return 0;
357
+}
358
+EXPORT_SYMBOL_GPL(devm_led_classdev_flash_register_ext);
359
+
360
+static int devm_led_classdev_flash_match(struct device *dev,
361
+					      void *res, void *data)
362
+{
363
+	struct led_classdev_flash **p = res;
364
+
365
+	if (WARN_ON(!p || !*p))
366
+		return 0;
367
+
368
+	return *p == data;
369
+}
370
+
371
+void devm_led_classdev_flash_unregister(struct device *dev,
372
+					struct led_classdev_flash *fled_cdev)
373
+{
374
+	WARN_ON(devres_release(dev,
375
+			       devm_led_classdev_flash_release,
376
+			       devm_led_classdev_flash_match, fled_cdev));
377
+}
378
+EXPORT_SYMBOL_GPL(devm_led_classdev_flash_unregister);
379
+
332
380
 static void led_clamp_align(struct led_flash_setting *s)
333
381
 {
334
382
 	u32 v, offset;