linux-kernel - [PATCH] drivers: input: Directly use ida

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Date:   Fri, 27 May 2022 10:37:40 +0000
From:   keliu <liuke94@...wei.com>
To:     <dmitry.torokhov@...il.com>, <marcoshalano@...il.com>,
        <michael@...haelcullen.name>, <linux-input@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     keliu <liuke94@...wei.com>
Subject: [PATCH] drivers: input:  Directly use ida_alloc()/free()

Use ida_alloc()/ida_free() instead of deprecated
ida_simple_get()/ida_simple_remove() .

Signed-off-by: keliu <liuke94@...wei.com>
---
 drivers/input/input.c         | 8 ++++----
 drivers/input/joystick/xpad.c | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 1365c9dfb5f2..1e4a275795f9 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -2618,15 +2618,15 @@ int input_get_new_minor(int legacy_base, unsigned int legacy_num,
 	 * locking is needed here.
 	 */
 	if (legacy_base >= 0) {
-		int minor = ida_simple_get(&input_ida,
+		int minor = ida_alloc_range(&input_ida,
 					   legacy_base,
-					   legacy_base + legacy_num,
+					   legacy_base + legacy_num - 1,
 					   GFP_KERNEL);
 		if (minor >= 0 || !allow_dynamic)
 			return minor;
 	}
 
-	return ida_simple_get(&input_ida,
+	return ida_alloc_range(&input_ida,
 			      INPUT_FIRST_DYNAMIC_DEV, INPUT_MAX_CHAR_DEVICES,
 			      GFP_KERNEL);
 }
@@ -2641,7 +2641,7 @@ EXPORT_SYMBOL(input_get_new_minor);
  */
 void input_free_minor(unsigned int minor)
 {
-	ida_simple_remove(&input_ida, minor);
+	ida_free(&input_ida, minor);
 }
 EXPORT_SYMBOL(input_free_minor);
 
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 18190b529bca..fafc0d5703dc 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1456,7 +1456,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
 	if (!led)
 		return -ENOMEM;
 
-	xpad->pad_nr = ida_simple_get(&xpad_pad_seq, 0, 0, GFP_KERNEL);
+	xpad->pad_nr = ida_alloc(&xpad_pad_seq, GFP_KERNEL);
 	if (xpad->pad_nr < 0) {
 		error = xpad->pad_nr;
 		goto err_free_mem;
@@ -1479,7 +1479,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
 	return 0;
 
 err_free_id:
-	ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
+	ida_free(&xpad_pad_seq, xpad->pad_nr);
 err_free_mem:
 	kfree(led);
 	xpad->led = NULL;
@@ -1492,7 +1492,7 @@ static void xpad_led_disconnect(struct usb_xpad *xpad)
 
 	if (xpad_led) {
 		led_classdev_unregister(&xpad_led->led_cdev);
-		ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
+		ida_free(&xpad_pad_seq, xpad->pad_nr);
 		kfree(xpad_led);
 	}
 }
-- 
2.25.1