Check DSI instance id argument against the proper boundary size
to protect against invalid configuration of the DSI id.

Signed-off-by: Lloyd Atkinson <latki...@codeaurora.org>
---
 drivers/gpu/drm/msm/dsi/dsi_manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c 
b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index 1a54fd6..4cb1cb6 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -862,7 +862,7 @@ int msm_dsi_manager_register(struct msm_dsi *msm_dsi)
        int id = msm_dsi->id;
        int ret;
 
-       if (id > DSI_MAX) {
+       if (id >= DSI_MAX) {
                pr_err("%s: invalid id %d\n", __func__, id);
                return -EINVAL;
        }
-- 
QUALCOMM Canada, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

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