| Message ID | 1285599430-23409-1-git-send-email-alexdeucher@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 30a51c3..31f45af 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3491,7 +3491,8 @@ void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo) /* r7xx hw bug. write to HDP_DEBUG1 followed by fb read * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL */ - if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740)) { + if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740) && + rdev->vram_scratch.ptr) { void __iomem *ptr = (void *)rdev->vram_scratch.ptr; u32 tmp;