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;
On 2021-03-02 9:05 a.m., Colin King wrote:
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
Reviewed-by: Harry Wentland harry.wentland@amd.com
Harry
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;
Applied. Thanks!
Alex
On Tue, Mar 2, 2021 at 10:03 AM Harry Wentland harry.wentland@amd.com wrote:
On 2021-03-02 9:05 a.m., Colin King wrote:
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
Reviewed-by: Harry Wentland harry.wentland@amd.com
Harry
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;
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Alex Deucher -
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