diff options
| author |   Alex Hung <alex.hung@amd.com> | 2024-12-05 20:57:04 -0700 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2024-12-18 12:20:14 -0500 |
| commit | 1b0cbcf888543b88787ad147731160244bb993c9 (patch) | |
| tree | c663e323e7599025d5ebba39c0727e943cebedd1 | |
| parent | drm/amd/display: Apply (some) policy for DML2 formulation on DCN35/DCN351 (diff) | |
| download | wireguard-linux-1b0cbcf888543b88787ad147731160244bb993c9.tar.xz wireguard-linux-1b0cbcf888543b88787ad147731160244bb993c9.zip | |
drm/amd/display: Fix uninitialized variables in amdgpu_dm_debugfs
[WHAT]
Some fields in struct dc_link_settings and link_training_settings are
not initialized and using them can cause unexpected results.
[HOW]
Initialize struct dc_link_settings and link_training_settings to zero.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 11a7ac54f91c..2a3c4ac065de 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -258,7 +258,7 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf, struct dc_link *link = connector->dc_link; struct amdgpu_device *adev = drm_to_adev(connector->base.dev); struct dc *dc = (struct dc *)link->dc; - struct dc_link_settings prefer_link_settings; + struct dc_link_settings prefer_link_settings = {0}; char *wr_buf = NULL; const uint32_t wr_buf_size = 40; /* 0: lane_count; 1: link_rate */ @@ -389,7 +389,7 @@ static ssize_t dp_mst_link_setting(struct file *f, const char __user *buf, struct dc_link *link = aconnector->dc_link; struct amdgpu_device *adev = drm_to_adev(aconnector->base.dev); struct dc *dc = (struct dc *)link->dc; - struct dc_link_settings prefer_link_settings; + struct dc_link_settings prefer_link_settings = {0}; char *wr_buf = NULL; const uint32_t wr_buf_size = 40; /* 0: lane_count; 1: link_rate */ @@ -613,7 +613,7 @@ static ssize_t dp_phy_settings_write(struct file *f, const char __user *buf, uint32_t wr_buf_size = 40; long param[3]; bool use_prefer_link_setting; - struct link_training_settings link_lane_settings; + struct link_training_settings link_lane_settings = {0}; int max_param_num = 3; uint8_t param_nums = 0; int r = 0; @@ -768,7 +768,7 @@ static ssize_t dp_phy_test_pattern_debugfs_write(struct file *f, const char __us LINK_RATE_UNKNOWN, LINK_SPREAD_DISABLED}; struct dc_link_settings cur_link_settings = {LANE_COUNT_UNKNOWN, LINK_RATE_UNKNOWN, LINK_SPREAD_DISABLED}; - struct link_training_settings link_training_settings; + struct link_training_settings link_training_settings = {0}; int i; if (size == 0) |