init/do_mounts: initrd_load() can be boolean

Make initrd_load() return bool due to this particular function only using
either one or zero as its return value.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

init/do_mounts.h

@@ -57,11 +57,11 @@ static inline int rd_load_image(char *from) { return 0; }
 
 #ifdef CONFIG_BLK_DEV_INITRD
 
-int __init initrd_load(void);
+bool __init initrd_load(void);
 
 #else
 
-static inline int initrd_load(void) { return 0; }
+static inline bool initrd_load(void) { return false; }
 
 #endif
 

init/do_mounts_initrd.c

@@ -116,7 +116,7 @@ static void __init handle_initrd(void)
 	}
 }
 
-int __init initrd_load(void)
+bool __init initrd_load(void)
 {
 	if (mount_initrd) {
 		create_dev("/dev/ram", Root_RAM0);
@@ -129,9 +129,9 @@ int __init initrd_load(void)
 		if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
 			sys_unlink("/initrd.image");
 			handle_initrd();
-			return 1;
+			return true;
 		}
 	}
 	sys_unlink("/initrd.image");
-	return 0;
+	return false;
 }