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authorLloyd Atkinson <latkinso@codeaurora.org>2018-01-16 16:26:02 -0500
committerRob Clark <robdclark@gmail.com>2018-02-20 10:41:20 -0500
commit6e1787cf45e48866c01dadc2a1b6c3d63d75b8d1 (patch)
treea101ec20fc17cd8e869e2edc1ffb1801d45ca3fe /drivers/gpu
parentf0efc831d9439589efaf6406695470eca93ba08d (diff)
drm/msm/dsi: correct DSI id bounds check during registration
Check DSI instance id argument against the proper boundary size to protect against invalid configuration of the DSI id. Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/msm/dsi/dsi_manager.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index 1a54fd67c9c4..4cb1cb68878b 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;
}