diff --git a/arch/um/include/line.h b/arch/um/include/line.h
index 5323d22..315788c 100644
--- a/arch/um/include/line.h
+++ b/arch/um/include/line.h
@@ -64,8 +64,8 @@
 	  head :	NULL, \
 	  tail :	NULL, \
 	  sigio :	0, \
- 	  driver :	d, \
-          have_irq :	0 }
+	  driver :	d, \
+	  have_irq :	0 }
 
 struct lines {
 	int num;
@@ -74,11 +74,12 @@
 #define LINES_INIT(n) {  num :		n }
 
 extern void line_close(struct tty_struct *tty, struct file * filp);
-extern int line_open(struct line *lines, struct tty_struct *tty, 
+extern int line_open(struct line *lines, struct tty_struct *tty,
 		     struct chan_opts *opts);
 extern int line_setup(struct line *lines, unsigned int sizeof_lines, char *init,
 		      int all_allowed);
-extern int line_write(struct tty_struct *tty, const unsigned char *buf, int len);
+extern int line_write(struct tty_struct *tty, const unsigned char *buf,
+		      int len);
 extern void line_put_char(struct tty_struct *tty, unsigned char ch);
 extern void line_set_termios(struct tty_struct *tty, struct termios * old);
 extern int line_chars_in_buffer(struct tty_struct *tty);
@@ -89,21 +90,24 @@
 		      unsigned int cmd, unsigned long arg);
 
 extern char *add_xterm_umid(char *base);
-extern int line_setup_irq(int fd, int input, int output, struct tty_struct *tty);
+extern int line_setup_irq(int fd, int input, int output,
+			  struct tty_struct *tty);
 extern void line_close_chan(struct line *line);
 extern void line_disable(struct tty_struct *tty, int current_irq);
-extern struct tty_driver * line_register_devfs(struct lines *set, 
-				struct line_driver *line_driver, 
+extern struct tty_driver * line_register_devfs(struct lines *set,
+				struct line_driver *line_driver,
 				struct tty_operations *driver,
 				struct line *lines,
 				int nlines);
 extern void lines_init(struct line *lines, int nlines);
 extern void close_lines(struct line *lines, int nlines);
 
-extern int line_config(struct line *lines, unsigned int sizeof_lines, char *str);
+extern int line_config(struct line *lines, unsigned int sizeof_lines,
+		       char *str);
 extern int line_id(char **str, int *start_out, int *end_out);
 extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n);
-extern int line_get_config(char *dev, struct line *lines, unsigned int sizeof_lines, char *str,
+extern int line_get_config(char *dev, struct line *lines,
+			   unsigned int sizeof_lines, char *str,
 			   int size, char **error_out);
 
 #endif