From: Alex Deucher alexander.deucher@amd.com
This might be called before we've allocated the radeon_crtcs
Signed-off-by: Alex Deucher alexander.deucher@amd.com --- drivers/gpu/drm/radeon/r100.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 8acb34f..2ac693c 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -80,10 +80,12 @@ MODULE_FIRMWARE(FIRMWARE_R520); */ void r100_wait_for_vblank(struct radeon_device *rdev, int crtc) { - struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc]; int i;
- if (radeon_crtc->crtc_id == 0) { + if (crtc >= rdev->num_crtc) + return; + + if (crtc == 0) { if (RREG32(RADEON_CRTC_GEN_CNTL) & RADEON_CRTC_EN) { for (i = 0; i < rdev->usec_timeout; i++) { if (!(RREG32(RADEON_CRTC_STATUS) & RADEON_CRTC_VBLANK_CUR))