[PATCH] xfree86: Fix rotation block handler in secondary server generations

[Adam Cheney]

xf86RotateBlockHandler was not included in the BlockHandler
chain after the first server generation, breaking crtc rotation.

During the first server generation, the pScreen->BlockHandler
function pointer is wrapped with xf86RotateBlockHandler, and the
previous pScreen->BlockHandler is saved into xf86_config.

When pScreen->BlockHandler is reset at CloseScreen time,
xf86_config->BlockHandler remained defined and xf86CrtcRotate
would not rewrap pScreen->BlockHandler as necessary.

This change clears out xf86_config->BlockHandler during
ScreenInit so each server generation sets up the rotation
block handler similarly.

Signed-off-by: Adam Cheney <acheney at nvidia.com>
---
 hw/xfree86/modes/xf86Crtc.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 30742ff..1c6ae14 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -807,6 +807,8 @@ xf86CrtcScreenInit (ScreenPtr screen)
     config->CloseScreen = screen->CloseScreen;
     screen->CloseScreen = xf86CrtcCloseScreen;
     
+    config->BlockHandler = NULL;
+
 #ifdef XFreeXDGA
     _xf86_di_dga_init_internal(screen);
 #endif
-- 
1.7.3.2


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