1 files changed, 19 insertions, 4 deletions

diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 80e72dc564a5..3adc362f0bd2 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -296,11 +296,11 @@ struct tty_driver {
         int     name_base;      /* offset of printed name */
         int     major;          /* major device number */
         int     minor_start;    /* start of minor device number */
-        int     num;            /* number of devices allocated */
+        unsigned int    num;    /* number of devices allocated */
         short   type;           /* type of tty driver */
         short   subtype;        /* subtype of tty driver */
         struct ktermios init_termios; /* Initial termios */
-        int     flags;          /* tty driver flags */
+        unsigned long   flags;          /* tty driver flags */
         struct proc_dir_entry *proc_entry; /* /proc fs entry */
         struct tty_driver *other; /* only used for the PTY driver */
 
@@ -322,7 +322,8 @@ struct tty_driver {
 
 extern struct list_head tty_drivers;
 
-extern struct tty_driver *__alloc_tty_driver(int lines, struct module *owner);
+extern struct tty_driver *__tty_alloc_driver(unsigned int lines,
+                struct module *owner, unsigned long flags);
 extern void put_tty_driver(struct tty_driver *driver);
 extern void tty_set_operations(struct tty_driver *driver,
                         const struct tty_operations *op);
@@ -330,7 +331,21 @@ extern struct tty_driver *tty_find_polling_driver(char *name, int *line);
 
 extern void tty_driver_kref_put(struct tty_driver *driver);
 
-#define alloc_tty_driver(lines) __alloc_tty_driver(lines, THIS_MODULE)
+/* Use TTY_DRIVER_* flags below */
+#define tty_alloc_driver(lines, flags) \
+                __tty_alloc_driver(lines, THIS_MODULE, flags)
+
+/*
+ * DEPRECATED Do not use this in new code, use tty_alloc_driver instead.
+ * (And change the return value checks.)
+ */
+static inline struct tty_driver *alloc_tty_driver(unsigned int lines)
+{
+        struct tty_driver *ret = tty_alloc_driver(lines, 0);
+        if (IS_ERR(ret))
+                return NULL;
+        return ret;
+}
 
 static inline struct tty_driver *tty_driver_kref_get(struct tty_driver *d)
 {