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Diffstat (limited to 'linux-core')
-rw-r--r--linux-core/via_dmablit.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/linux-core/via_dmablit.c b/linux-core/via_dmablit.c
index 6e04cb57..2b025a21 100644
--- a/linux-core/via_dmablit.c
+++ b/linux-core/via_dmablit.c
@@ -596,8 +596,9 @@ via_build_sg_info(drm_device_t *dev, drm_via_sg_info_t *vsg, drm_via_dmablit_t *
*/
if (((xfer->mem_stride - xfer->line_length) >= PAGE_SIZE) ||
- (xfer->mem_stride > 2048)) {
- DRM_ERROR("Too large system memory stride.\n");
+ (xfer->mem_stride > 2048*4)) {
+ DRM_ERROR("Too large system memory stride. Stride: %d, "
+ "Length: %d\n", xfer->mem_stride, xfer->line_length);
return DRM_ERR(EINVAL);
}
@@ -630,7 +631,8 @@ via_build_sg_info(drm_device_t *dev, drm_via_sg_info_t *vsg, drm_via_dmablit_t *
return DRM_ERR(EINVAL);
}
#else
- if ((((unsigned long)xfer->mem_addr & 15) || ((unsigned long)xfer->fb_addr & 15))) {
+ if ((((unsigned long)xfer->mem_addr & 15) || ((unsigned long)xfer->fb_addr & 3)) ||
+ (xfer->mem_stride & 15) || (xfer->fb_stride & 3)) {
DRM_ERROR("Invalid DRM bitblt alignment.\n");
return DRM_ERR(EINVAL);
}