From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 4 Jul 2018 12:48:10 +0300
Subject: drm/savage: off by one in savage_bci_cmdbuf()
Git-commit: 968d72e6a5105a18fe17c0a8b4ef2951d0eb42dd
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The > should be >= here so that we don't read beyond the end of the
dma->buflist[] array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180704094810.whrgn6jxe7uibnfv@kili.mountain

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/savage/savage_state.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/savage/savage_state.c
+++ b/drivers/gpu/drm/savage/savage_state.c
@@ -971,7 +971,7 @@ int savage_bci_cmdbuf(struct drm_device
 	LOCK_TEST_WITH_RETURN(dev, file_priv);
 
 	if (dma && dma->buflist) {
-		if (cmdbuf->dma_idx > dma->buf_count) {
+		if (cmdbuf->dma_idx >= dma->buf_count) {
 			DRM_ERROR
 			    ("vertex buffer index %u out of range (0-%u)\n",
 			     cmdbuf->dma_idx, dma->buf_count - 1);