linux-kernel - [PATCH next] drm/msm/dpu: Fix uninitialized variable in dpu_crtc_kickoff_clone

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Message-ID: <f8ba03dc-0f90-4781-8d54-c16b3251ecb1@stanley.mountain>
Date: Fri, 7 Mar 2025 12:29:39 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Jessica Zhang <quic_jesszhan@...cinc.com>
Cc: Rob Clark <robdclark@...il.com>,
	Abhinav Kumar <quic_abhinavk@...cinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Sean Paul <sean@...rly.run>,
	Marijn Suijten <marijn.suijten@...ainline.org>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH next] drm/msm/dpu: Fix uninitialized variable in
 dpu_crtc_kickoff_clone_mode()

After the loop there is a check for whether "wb_encoder" has been set
to non-NULL, however it was never set to NULL.  Initialize it to NULL.

Fixes: ad06972d5365 ("drm/msm/dpu: Reorder encoder kickoff for CWB")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index b0a062d6fa3b..ff6f5c5303d4 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -956,7 +956,7 @@ static int _dpu_crtc_wait_for_frame_done(struct drm_crtc *crtc)
 static int dpu_crtc_kickoff_clone_mode(struct drm_crtc *crtc)
 {
 	struct drm_encoder *encoder;
-	struct drm_encoder *rt_encoder = NULL, *wb_encoder;
+	struct drm_encoder *rt_encoder = NULL, *wb_encoder = NULL;
 	struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
 
 	/* Find encoder for real time display */
-- 
2.47.2