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>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index c7ea7f2..91bd68e 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -60,8 +60,6 @@
if (atomic)
flags = GFP_ATOMIC;
page = __get_free_pages(flags, order);
- if (page == 0)
- return 0;
return page;
}
@@ -331,7 +329,7 @@
(*call)();
}
-char *uml_strdup(char *string)
+char *uml_strdup(const char *string)
{
return kstrdup(string, GFP_KERNEL);
}