diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 35e8eb02b9e9..e4e4d433b007 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -354,7 +354,7 @@ static int default_crt_on __devinitdata = 0;
 static int default_lcd_on __devinitdata = 1;
 
 #ifdef CONFIG_MTRR
-static int mtrr = 1;
+static bool mtrr = true;
 #endif
 
 #ifdef CONFIG_PMAC_BACKLIGHT
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index a4f0b931846c..9bbca8e8c19f 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -192,7 +192,7 @@ extern int param_get_bool(char *buffer, struct kernel_param *kp);
 
 extern int param_set_invbool(const char *val, struct kernel_param *kp);
 extern int param_get_invbool(char *buffer, struct kernel_param *kp);
-#define param_check_invbool(name, p) __param_check(name, p, int)
+#define param_check_invbool(name, p) __param_check(name, p, bool)
 
 /* Comma-separated array: *nump is set to number they actually specified. */
 #define module_param_array_named(name, array, type, nump, perm)		\
diff --git a/kernel/params.c b/kernel/params.c
index de273ec85bd2..023abbf5f89f 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -272,13 +272,13 @@ int param_set_invbool(const char *val, struct kernel_param *kp)
 	dummy.arg = &boolval;
 	ret = param_set_bool(val, &dummy);
 	if (ret == 0)
-		*(int *)kp->arg = !boolval;
+		*(bool *)kp->arg = !boolval;
 	return ret;
 }
 
 int param_get_invbool(char *buffer, struct kernel_param *kp)
 {
-	return sprintf(buffer, "%c", (*(int *)kp->arg) ? 'N' : 'Y');
+	return sprintf(buffer, "%c", (*(bool *)kp->arg) ? 'N' : 'Y');
 }
 
 /* We break the rule and mangle the string. */