diff options
| author | Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> | 2024-01-17 08:41:52 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-01-22 17:13:26 -0500 |
| commit | 3295580d4683bdc56c0662b4a4834f597baceadc (patch) | |
| tree | d2317d9c11853a47316bef41d4cc50fd2566eaa3 | |
| parent | 1757bb7dab6de79c92b1d54b999a2ee1066acc1f (diff) | |
| download | linux-3295580d4683bdc56c0662b4a4834f597baceadc.tar.gz linux-3295580d4683bdc56c0662b4a4834f597baceadc.tar.bz2 linux-3295580d4683bdc56c0662b4a4834f597baceadc.zip | |
drm/amd/display: Fix uninitialized variable usage in core_link_ 'read_dpcd() & write_dpcd()' functions
The 'status' variable in 'core_link_read_dpcd()' &
'core_link_write_dpcd()' was uninitialized.
Thus, initializing 'status' variable to 'DC_ERROR_UNEXPECTED' by default.
Fixes the below:
drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dpcd.c:226 core_link_read_dpcd() error: uninitialized symbol 'status'.
drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dpcd.c:248 core_link_write_dpcd() error: uninitialized symbol 'status'.
Cc: stable@vger.kernel.org
Cc: Jerry Zuo <jerry.zuo@amd.com>
Cc: Jun Lei <Jun.Lei@amd.com>
Cc: Wayne Lin <Wayne.Lin@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c index 5c9a30211c10..fc50931c2aec 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c @@ -205,7 +205,7 @@ enum dc_status core_link_read_dpcd( uint32_t extended_size; /* size of the remaining partitioned address space */ uint32_t size_left_to_read; - enum dc_status status; + enum dc_status status = DC_ERROR_UNEXPECTED; /* size of the next partition to be read from */ uint32_t partition_size; uint32_t data_index = 0; @@ -234,7 +234,7 @@ enum dc_status core_link_write_dpcd( { uint32_t partition_size; uint32_t data_index = 0; - enum dc_status status; + enum dc_status status = DC_ERROR_UNEXPECTED; while (size) { partition_size = dpcd_get_next_partition_size(address, size); |