Commit 73c3ed74 authored by 蒋家盛's avatar 蒋家盛 Committed by Liviu Dudau
Browse files

drm: mali-dp: potential dereference of null pointer 



The return value of kzalloc() needs to be checked.
To avoid use of null pointer '&state->base' in case of the
failure of alloc.

Fixes: 99665d07 ("drm: mali-dp: add malidp_crtc_state struct")
Signed-off-by: default avatarJiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: default avatarBrian Starkey <brian.starkey@arm.com>
Signed-off-by: default avatarLiviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211214100837.46912-1-jiasheng@iscas.ac.cn
parent b5c7d197

drivers/gpu/drm/arm/malidp_crtc.c

+4 −1
Original line number Diff line number Diff line
@@ -487,7 +487,10 @@ static void malidp_crtc_reset(struct drm_crtc *crtc) 
	if (crtc->state)

		malidp_crtc_destroy_state(crtc, crtc->state);



	if (state)

		__drm_atomic_helper_crtc_reset(crtc, &state->base);

	else

		__drm_atomic_helper_crtc_reset(crtc, NULL);

}



static int malidp_crtc_enable_vblank(struct drm_crtc *crtc)