m68k: dnfb doesnt check for Apollo

The Apollo frame buffer device driver (dnfb) doesn't check whether it's
actually running on Apollo hardware, causing a crash if it isn't.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/video/dnfb.c b/drivers/video/dnfb.c
index b083ea7e9c69..606da043f4b4 100644
--- a/drivers/video/dnfb.c
+++ b/drivers/video/dnfb.c
@@ -284,6 +284,9 @@ int __init dnfb_init(void)
 {
         int ret;
 
+        if (!MACH_IS_APOLLO)
+                return -ENODEV;
+
         if (fb_get_options("dnfb", NULL))
                 return -ENODEV;