1 files changed, 2 insertions, 2 deletions

diff --git a/arch/um/include/line.h b/arch/um/include/line.h
index 27bf2f6fbc05..642c9a0320f9 100644
--- a/arch/um/include/line.h
+++ b/arch/um/include/line.h
@@ -52,7 +52,7 @@ struct line {
 
         int sigio;
         struct work_struct task;
-        struct line_driver *driver;
+        const struct line_driver *driver;
         int have_irq;
 };
 
@@ -99,7 +99,7 @@ extern void lines_init(struct line *lines, int nlines, struct chan_opts *opts);
 extern void close_lines(struct line *lines, int nlines);
 
 extern int line_config(struct line *lines, unsigned int sizeof_lines,
-                       char *str, struct chan_opts *opts);
+                       char *str, const struct chan_opts *opts);
 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,