Hi Linus,
please apply this to 2.5.20. James introduced bad bug which
causes NULL pointer dereference as soon as you'll try to use
secondary head because of screen_base is not initialized
(it is initialized on wrong head).
Thanks,
Petr Vandrovec
[email protected]
diff -urdN linux/drivers/video/matrox/matroxfb_crtc2.c linux/drivers/video/matrox/matroxfb_crtc2.c
--- linux/drivers/video/matrox/matroxfb_crtc2.c Mon Jun 3 01:44:45 2002
+++ linux/drivers/video/matrox/matroxfb_crtc2.c Fri Jun 7 23:03:07 2002
@@ -383,7 +383,7 @@
chgvar = 0;
p->var = *var;
/* cmap */
- ACCESS_FBINFO(fbcon.screen_base) = vaddr_va(m2info->video.vbase);
+ m2info->fbcon.screen_base = vaddr_va(m2info->video.vbase);
p->visual = visual;
p->ypanstep = 1;
p->ywrapstep = 0;