[PATCH 5.17 0465/1126] drm/amd/display: Call dc_stream_release for remove link enc assignment

Greg Kroah-Hartman
2022-04-05T08:08:48Z

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[ Upstream commit f2bde8349c35d01d7c50456ea06a5c7d5e0e5ed0 ]

[Why]
A porting error resulted in the stream assignment for the link
being retained without being released - a memory leak.

[How]
Fix the porting error by adding back the dc_stream_release() intended
as part of the original patch.

Fixes: 0bb245558584 ("drm/amd/display: retain/release at proper places in link_enc assignment")

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
index a55944da8d53..00f72f66a7ef 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c
@@ -122,6 +122,7 @@ static void remove_link_enc_assignment(
stream->link_enc = NULL;
state->res_ctx.link_enc_cfg_ctx.link_enc_assignments[i].eng_id = ENGINE_ID_UNKNOWN;
state->res_ctx.link_enc_cfg_ctx.link_enc_assignments[i].stream = NULL;
+ dc_stream_release(stream);
break;
}
}
--
2.34.1