viafbdev: fix compilation warning for unused variable

viafbdev: Fix compilation warning for unused variable for #ifdef MODULE
Fix compilation warning when #ifdef MODULE

drivers/video/via/viafbdev.c: In function ‘viafb_init’:
drivers/video/via/viafbdev.c:2019: warning: unused variable ‘r’

Signed-off-by: Nikanth Karthikesan <nikanth@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/video/via/viafbdev.c

@@ -2016,7 +2016,7 @@ static int __init viafb_setup(void)
 int __init viafb_init(void)
 {
 	u32 dummy_x, dummy_y;
-	int r;
+	int r = 0;
 
 	if (machine_is_olpc())
 		/* Apply XO-1.5-specific configuration. */
@@ -2039,7 +2039,7 @@ int __init viafb_init(void)
 	printk(KERN_INFO
        "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
 	       VERSION_MAJOR, VERSION_MINOR);
-	return 0;
+	return r;
 }
 
 void __exit viafb_exit(void)