uml: const and other tidying

This patch also does some improvements for uml code.  Improvements include
dropping unnecessary cast, killing some unnecessary code and still some
constifying for pointers etc..

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h
index 74ce8e5370a6..aa27eb0f4586 100644
--- a/arch/um/include/kern_util.h
+++ b/arch/um/include/kern_util.h
@@ -81,7 +81,7 @@ extern void do_uml_exitcalls(void);
 extern int attach_debugger(int idle_pid, int pid, int stop);
 extern int config_gdb(char *str);
 extern int remove_gdb(void);
-extern char *uml_strdup(char *string);
+extern char *uml_strdup(const char *string);
 extern void unprotect_kernel_mem(void);
 extern void protect_kernel_mem(void);
 extern void uml_cleanup(void);