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 <[e-mail]>
[wsa: fixed typo in commit message]
Signed-off-by: Wolfram Sang <[e-mail]>

drivers/i2c/i2c-dev.c

···
 	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);