drm/amd/display: fix use of uninitialized variable

tg_inst may be used uninitialized, so initialize it to 0.

Signed-off-by: Martin Leung <martin.leung@amd.com>
Reviewed-by: Jaehyun Chung <Jaehyun.Chung@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index d524981..0987520 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -974,7 +974,7 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
 {
        struct timing_generator *tg;
        struct dc_link *link = sink->link;
-       unsigned int enc_inst, tg_inst, i;
+       unsigned int i, enc_inst, tg_inst = 0;
 
        // Seamless port only support single DP and EDP so far
        if (sink->sink_signal != SIGNAL_TYPE_DISPLAY_PORT &&

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 215e93a..25da0c4 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1848,7 +1848,7 @@ static int acquire_resource_from_hw_enabled_state(
                struct dc_stream_state *stream)
 {
        struct dc_link *link = stream->link;
-       unsigned int inst, tg_inst, i;
+       unsigned int i, inst, tg_inst = 0;
 
        /* Check for enabled DIG to identify enabled display */
        if (!link->link_enc->funcs->is_dig_enabled(link->link_enc))