disp: msm: sde: fix null dereference in drm_atomic_get_property

Add changes to fix the null dereference in
drm_atomic_get_property caused by connector->state
being NULL. This change allows the drm_mode_config_reset
operation to happen before drm_dev_register to avoid this.
In current scenario, connector->state->crtc is being
accessed due to call to drm_mode_getconnector ioctl with
the drm_mode_config_reset operation pending.

Change-Id: I374d9485819fad85100d1837f4ae22fc2a3ccc40
Signed-off-by: Jayaprakash <jmadiset@codeaurora.org>
This commit is contained in:
Jayaprakash 2021-02-22 13:53:45 +05:30
commit ddbcaa93eb

View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
@ -886,13 +886,13 @@ static int msm_drm_component_init(struct device *dev)
}
}
drm_mode_config_reset(ddev);
ret = drm_dev_register(ddev, 0);
if (ret)
goto fail;
priv->registered = true;
drm_mode_config_reset(ddev);
if (kms && kms->funcs && kms->funcs->cont_splash_config) {
ret = kms->funcs->cont_splash_config(kms, NULL);
if (ret) {