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drm/rockchip: vop: Fix call to crtc reset helper

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[ Upstream commit 5aacd29083 ]

Allocation of crtc_state may fail in vop_crtc_reset, causing an invalid
pointer to be passed to __drm_atomic_helper_crtc_reset.

Fix this by adding a NULL check of crtc_state, similar to other drivers.

Fixes: 01e2eaf40c ("drm/rockchip: Convert to using __drm_atomic_helper_crtc_reset() for reset.")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230621223311.2239547-4-jonas@kwiboo.se
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonas Karlman 2023-06-21 22:33:20 +00:00 committed by Greg Kroah-Hartman
parent 6675723b6e
commit cee7b9885e
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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@ -1640,7 +1640,10 @@ static void vop_crtc_reset(struct drm_crtc *crtc)
if (crtc->state)
vop_crtc_destroy_state(crtc, crtc->state);
__drm_atomic_helper_crtc_reset(crtc, &crtc_state->base);
if (crtc_state)
__drm_atomic_helper_crtc_reset(crtc, &crtc_state->base);
else
__drm_atomic_helper_crtc_reset(crtc, NULL);
}
#ifdef CONFIG_DRM_ANALOGIX_DP