m68k: Return -ENODEV if no device is found

According to the tests in do_initcalls(), the proper error code in case no
device is found is -ENODEV, not -ENXIO or -EIO.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c
index e6492c1..05a328c 100644
--- a/drivers/video/amifb.c
+++ b/drivers/video/amifb.c
@@ -2261,7 +2261,7 @@
 	amifb_setup(option);
 #endif
 	if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_VIDEO))
-		return -ENXIO;
+		return -ENODEV;
 
 	/*
 	 * We request all registers starting from bplpt[0]
@@ -2333,7 +2333,7 @@
 			strcat(fb_info.fix.id, "Unknown");
 			goto default_chipset;
 #else /* CONFIG_FB_AMIGA_OCS */
-			err = -ENXIO;
+			err = -ENODEV;
 			goto amifb_error;
 #endif /* CONFIG_FB_AMIGA_OCS */
 			break;