From: Johan Hovold <johan+linaro@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx # 5.14
Cc: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/525099/
Link: https://lore.kernel.org/r/20230306100722.28485-4-johan+linaro@xxxxxxxxxx
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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);
