This is a note to let you know that I've just added the patch titled
drm/amd/display: Deallocate DML memory if allocation fails
to the 6.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-deallocate-dml-memory-if-allocation-.patch
and it can be found in the queue-6.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 562a5f58d9d980094abe80ac9b8a8d278960379d
Author: Chris Park <chris.park@xxxxxxx>
Date: Fri Jun 28 15:09:06 2024 -0400
drm/amd/display: Deallocate DML memory if allocation fails
[ Upstream commit 892abca6877a96c9123bb1c010cafccdf8ca1b75 ]
[Why]
When DC state create DML memory allocation fails, memory is not
deallocated subsequently, resulting in uninitialized structure
that is not NULL.
[How]
Deallocate memory if DML memory allocation fails.
Reviewed-by: Joshua Aberback <joshua.aberback@xxxxxxx>
Signed-off-by: Jerry Zuo <jerry.zuo@xxxxxxx>
Signed-off-by: Chris Park <chris.park@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_state.c b/drivers/gpu/drm/amd/display/dc/core/dc_state.c
index e990346e51f67..665157f8d4cbe 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_state.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_state.c
@@ -211,10 +211,16 @@ struct dc_state *dc_state_create(struct dc *dc, struct dc_state_create_params *p
#ifdef CONFIG_DRM_AMD_DC_FP
if (dc->debug.using_dml2) {
dml2_opt->use_clock_dc_limits = false;
- dml2_create(dc, dml2_opt, &state->bw_ctx.dml2);
+ if (!dml2_create(dc, dml2_opt, &state->bw_ctx.dml2)) {
+ dc_state_release(state);
+ return NULL;
+ }
dml2_opt->use_clock_dc_limits = true;
- dml2_create(dc, dml2_opt, &state->bw_ctx.dml2_dc_power_source);
+ if (!dml2_create(dc, dml2_opt, &state->bw_ctx.dml2_dc_power_source)) {
+ dc_state_release(state);
+ return NULL;
+ }
}
#endif
