diff --git a/[refs] b/[refs]
index 83e9b8f8c009..679265964110 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bb83da053319e81906473bec08e8f677d6ac615f
+refs/heads/master: c90e12b86595dbd9996336ac9d762487c638d934
diff --git a/trunk/arch/um/include/kern.h b/trunk/arch/um/include/kern.h
index 7d223beccbc0..4ce3fc650e57 100644
--- a/trunk/arch/um/include/kern.h
+++ b/trunk/arch/um/include/kern.h
@@ -29,7 +29,7 @@ extern int getuid(void);
 extern int getgid(void);
 extern int pause(void);
 extern int write(int, const void *, int);
-extern int exit(int);
+extern void exit(int);
 extern int close(int);
 extern int read(unsigned int, char *, int);
 extern int pipe(int *);