From: Chengguang Xu <cgxu519@gmx.com>
Date: Tue, 12 Feb 2019 06:06:57 +0000 (+0800)
Subject: i2c: expand minor range when registering chrdev region
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8a6d508a8055ea2ef8477e649662287e57727f54;p=linux.git

i2c: expand minor range when registering chrdev region

Actually, total amount of available minor number for a single major is
MINORMASK + 1. So expand minor range when registering chrdev region.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
[wsa: fixed typo in commit message]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index ccd76c71af098..3f7b9af111379 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -52,7 +52,7 @@ struct i2c_dev {
 	struct cdev cdev;
 };
 
-#define I2C_MINORS	MINORMASK
+#define I2C_MINORS	(MINORMASK + 1)
 static LIST_HEAD(i2c_dev_list);
 static DEFINE_SPINLOCK(i2c_dev_list_lock);