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drm/rockchip: rga: fix smatch check

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Change-Id: I884ca0d65f1092720262ee96c85803071cbc6284
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
This commit is contained in:
Jacob Chen
2017-03-31 10:38:44 +08:00
committed by Huang, Tao
parent e820635300
commit 1343ca9e43
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/rockchip/rockchip_drm_rga.c
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@@ -158,10 +158,15 @@ static int rga_alloc_dma_buf_for_cmdlist(struct rga_runqueue_node *runqueue)
dest = cmdlist_pool_virt + RGA_CMDLIST_SIZE * 4 * count++;
for (i = 0; i < cmdlist->last / 2; i++) {
int val_index = 2 * i + 1;
reg = (node->cmdlist.data[2 * i] - RGA_MODE_BASE_REG);
if (reg > RGA_MODE_BASE_REG)
if (reg > RGA_MODE_BASE_REG || val_index >=
(RGA_CMDLIST_SIZE + RGA_CMDBUF_SIZE) * 2)
continue;
dest[reg >> 2] = cmdlist->data[2 * i + 1];
dest[reg >> 2] = cmdlist->data[val_index];
}
if (cmdlist->src_mmu_pages) {