From: Colin King <colin.king@canonical.com>
To: "Harry Wentland" <harry.wentland@amd.com>,
"Leo Li" <sunpeng.li@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Anson Jacob" <Anson.Jacob@amd.com>,
"Mikita Lipski" <Mikita.Lipski@amd.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH][next] drm/amd/display: fix the return of the uninitialized value in ret
Date: Tue, 2 Mar 2021 14:05:09 +0000 [thread overview]
Message-ID: <20210302140509.8466-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
Currently if stream->signal is neither SIGNAL_TYPE_DISPLAY_PORT_MST or
SIGNAL_TYPE_DISPLAY_PORT then variable ret is uninitialized and this is
checked for > 0 at the end of the function. Ret should be initialized,
I believe setting it to zero is a correct default.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: bd0c064c161c ("drm/amd/display: Add return code instead of boolean for future use")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 5159399f8239..5750818db8f6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -530,7 +530,7 @@ bool dm_helpers_dp_write_dsc_enable(
{
uint8_t enable_dsc = enable ? 1 : 0;
struct amdgpu_dm_connector *aconnector;
- uint8_t ret;
+ uint8_t ret = 0;
if (!stream)
return false;
--
2.30.0
next reply other threads:[~2021-03-02 16:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 14:05 Colin King [this message]
2021-03-02 15:03 ` [PATCH][next] drm/amd/display: fix the return of the uninitialized value in ret Harry Wentland
2021-03-02 17:51 ` Alex Deucher
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