From: Johan Hovold johan+linaro@kernel.org
commit a465353b9250802f87b97123e33a17f51277f0b1 upstream.
In case of early initialisation errors and on platforms that do not use the DPU controller, the deinitilisation code can be called with the kms pointer set to NULL.
Fixes: 98659487b845 ("drm/msm: add support to take dpu snapshot") Cc: stable@vger.kernel.org # 5.14 Cc: Abhinav Kumar quic_abhinavk@quicinc.com Signed-off-by: Johan Hovold johan+linaro@kernel.org Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Patchwork: https://patchwork.freedesktop.org/patch/525099/ Link: https://lore.kernel.org/r/20230306100722.28485-4-johan+linaro@kernel.org Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/msm/msm_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -359,7 +359,8 @@ static int msm_drm_uninit(struct device msm_fbdev_free(ddev); #endif
- msm_disp_snapshot_destroy(ddev); + if (kms) + msm_disp_snapshot_destroy(ddev);
drm_mode_config_cleanup(ddev);