diff options
| author | Tong Zhang <ztong0001@gmail.com> | 2020-08-16 10:32:12 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-19 01:22:49 +0300 |
| commit | 16697cf39ed8c5948b44f786bf9bf749dc67692e (patch) | |
| tree | 5b70559aab8cc18eb75fb0160f9f159e0bf4292c /drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | |
| parent | 1d5503331b12a76266049289747dfd94f1643fde (diff) | |
| download | linux-16697cf39ed8c5948b44f786bf9bf749dc67692e.tar.xz | |
drm/amd/display: should check error using DC_OK
core_link_read_dpcd returns only DC_OK(1) and DC_ERROR_UNEXPECTED(-1),
the caller should check error using DC_OK instead of checking against 0
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 231929932516..d1d95d3e248a 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -4413,9 +4413,9 @@ bool dc_link_get_backlight_level_nits(struct dc_link *link, link->connector_signal != SIGNAL_TYPE_DISPLAY_PORT)) return false; - if (!core_link_read_dpcd(link, DP_SOURCE_BACKLIGHT_CURRENT_PEAK, + if (core_link_read_dpcd(link, DP_SOURCE_BACKLIGHT_CURRENT_PEAK, dpcd_backlight_get.raw, - sizeof(union dpcd_source_backlight_get))) + sizeof(union dpcd_source_backlight_get)) != DC_OK) return false; *backlight_millinits_avg = @@ -4454,9 +4454,9 @@ bool dc_link_read_default_bl_aux(struct dc_link *link, uint32_t *backlight_milli link->connector_signal != SIGNAL_TYPE_DISPLAY_PORT)) return false; - if (!core_link_read_dpcd(link, DP_SOURCE_BACKLIGHT_LEVEL, + if (core_link_read_dpcd(link, DP_SOURCE_BACKLIGHT_LEVEL, (uint8_t *) backlight_millinits, - sizeof(uint32_t))) + sizeof(uint32_t)) != DC_OK) return false; return true; |