[PATCH] drm/bridge: synopsys: dw-dp: fix bool function returning negative error code

[Bob ynn]

From: yanlonglong <yanlongl...@kylinos.cn>

The function dw_dp_video_need_vsc_sdp() is declared to return bool, but
it returns -EINVAL when dw_dp_get_bridge_state() fails. Since -EINVAL is
a non-zero value (-22), it is implicitly converted to true, which is the
opposite of the intended behavior

Fixes: 86eecc3a9c2e("drm/bridge: synopsys: Add DW DPTX Controller support 
library")
Signed-off-by: yanlonglong <yanlongl...@kylinos.cn>
---
 drivers/gpu/drm/bridge/synopsys/dw-dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-dp.c 
b/drivers/gpu/drm/bridge/synopsys/dw-dp.c
index 21541be094c4..7b99d91b3456 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-dp.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-dp.c
@@ -1143,7 +1143,7 @@ static bool dw_dp_video_need_vsc_sdp(struct dw_dp *dp)
 
        state = dw_dp_get_bridge_state(dp);
        if (!state)
-               return -EINVAL;
+               return false;
 
        if (!link->vsc_sdp_supported)
                return false;
-- 
2.43.0