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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250209-dpu-v1-1-0db666884f70@ethancedwards.com>
Date: Sun, 09 Feb 2025 22:32:33 -0500
From: Ethan Carter Edwards <ethan@...ancedwards.com>
To: Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 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, 
 Ethan Carter Edwards <ethan@...ancedwards.com>
Subject: [PATCH] drm/msm/dpu: Fix uninitialized variable

There is a possibility for an uninitialized *ret* variable to be
returned in some code paths.

Fix this by initializing *ret* to 0.

Addresses-Coverity-ID: 1642546 ("Uninitialized scalar variable")
Fixes: 774bcfb731765d ("drm/msm/dpu: add support for virtual planes")
Signed-off-by: Ethan Carter Edwards <ethan@...ancedwards.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 098abc2c0003cde90ce6219c97ee18fa055a92a5..74edaa9ecee72111b70f32b832486aeebe545a28 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -1164,7 +1164,7 @@ int dpu_assign_plane_resources(struct dpu_global_state *global_state,
 			       unsigned int num_planes)
 {
 	unsigned int i;
-	int ret;
+	int ret = 0;
 
 	for (i = 0; i < num_planes; i++) {
 		struct drm_plane_state *plane_state = states[i];

---
base-commit: a64dcfb451e254085a7daee5fe51bf22959d52d3
change-id: 20250209-dpu-c3fac78fc617

Best regards,
-- 
Ethan Carter Edwards <ethan@...ancedwards.com>