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-rw-r--r--shared-core/via_dma.c18
-rw-r--r--shared-core/via_drv.h4
2 files changed, 15 insertions, 7 deletions
diff --git a/shared-core/via_dma.c b/shared-core/via_dma.c
index 0c2ac470..ac7b7bea 100644
--- a/shared-core/via_dma.c
+++ b/shared-core/via_dma.c
@@ -170,19 +170,22 @@ int via_dma_init(DRM_IOCTL_ARGS)
static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd)
{
- drm_via_private_t *dev_priv = dev->dev_private;
+ drm_via_private_t *dev_priv;
uint32_t *vb;
int ret;
+ dev_priv = (drm_via_private_t *) dev->dev_private;
+
+ if (dev_priv->ring.virtual_start == NULL) {
+ DRM_ERROR("%s called without initializing AGP ring buffer.\n",
+ __FUNCTION__);
+ return DRM_ERR(EFAULT);
+ }
if (cmd->size > pci_bufsiz && pci_bufsiz > 0) {
return DRM_ERR(ENOMEM);
}
- vb = via_check_dma(dev_priv, cmd->size);
- if (vb == NULL) {
- return DRM_ERR(EAGAIN);
- }
if (DRM_COPY_FROM_USER(pci_buf, cmd->buf, cmd->size))
return DRM_ERR(EFAULT);
@@ -198,6 +201,11 @@ static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd)
return ret;
}
+ vb = via_check_dma(dev_priv, cmd->size);
+ if (vb == NULL) {
+ return DRM_ERR(EAGAIN);
+ }
+
memcpy(vb, pci_buf, cmd->size);
dev_priv->dma_low += cmd->size;
diff --git a/shared-core/via_drv.h b/shared-core/via_drv.h
index 13a93b78..e905a606 100644
--- a/shared-core/via_drv.h
+++ b/shared-core/via_drv.h
@@ -28,11 +28,11 @@
#define DRIVER_NAME "via"
#define DRIVER_DESC "VIA Unichrome"
-#define DRIVER_DATE "20041204"
+#define DRIVER_DATE "20041206"
#define DRIVER_MAJOR 2
#define DRIVER_MINOR 2
-#define DRIVER_PATCHLEVEL 0
+#define DRIVER_PATCHLEVEL 1
typedef struct drm_via_ring_buffer {
drm_map_t map;