From 626adf92010a8e823f9b4043b049e8687b4813fb Mon Sep 17 00:00:00 2001
From: Anson Jacob <Anson.Jacob@amd.com>
Date: Mon, 23 Aug 2021 13:41:13 -0400
Subject: drm/amd/display: Fix multiple memory leaks reported by coverity
Git-commit: 7b89bf83181363a84f86da787159ddbbef505b8c
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
coccinelle patch used:
@@ expression enc1,vpg,afmt; @@
- if (!enc1 || !vpg || !afmt)
+ if (!enc1 || !vpg || !afmt) {
+ kfree(enc1);
+ kfree(vpg);
+ kfree(afmt);
return NULL;
+ }
Addresses-Coverity-ID: 1466017: ("Resource leaks")
Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../gpu/drm/amd/display/dc/dcn30/dcn30_resource.c | 6 +++++-
.../gpu/drm/amd/display/dc/dcn301/dcn301_resource.c | 6 +++++-
.../gpu/drm/amd/display/dc/dcn302/dcn302_resource.c | 6 +++++-
.../gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 12 ++++++++++--
4 files changed, 25 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
index 2feffe75ca62..3a8a3214f770 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
@@ -1164,8 +1164,12 @@ struct stream_encoder *dcn30_stream_encoder_create(
vpg = dcn30_vpg_create(ctx, vpg_inst);
afmt = dcn30_afmt_create(ctx, afmt_inst);
- if (!enc1 || !vpg || !afmt)
+ if (!enc1 || !vpg || !afmt) {
+ kfree(enc1);
+ kfree(vpg);
+ kfree(afmt);
return NULL;
+ }
dcn30_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios,
eng_id, vpg, afmt,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
index 912285fdce18..73b8fcb3c5c9 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
@@ -1195,8 +1195,12 @@ struct stream_encoder *dcn301_stream_encoder_create(
vpg = dcn301_vpg_create(ctx, vpg_inst);
afmt = dcn301_afmt_create(ctx, afmt_inst);
- if (!enc1 || !vpg || !afmt)
+ if (!enc1 || !vpg || !afmt) {
+ kfree(enc1);
+ kfree(vpg);
+ kfree(afmt);
return NULL;
+ }
dcn30_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios,
eng_id, vpg, afmt,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
index 5cd55e8573f7..fcf96cf08c76 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
@@ -542,8 +542,12 @@ static struct stream_encoder *dcn302_stream_encoder_create(enum engine_id eng_id
vpg = dcn302_vpg_create(ctx, vpg_inst);
afmt = dcn302_afmt_create(ctx, afmt_inst);
- if (!enc1 || !vpg || !afmt)
+ if (!enc1 || !vpg || !afmt) {
+ kfree(enc1);
+ kfree(vpg);
+ kfree(afmt);
return NULL;
+ }
dcn30_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id, vpg, afmt, &stream_enc_regs[eng_id],
&se_shift, &se_mask);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
index 8b1faf09dc47..44d852a24e0b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
@@ -1366,8 +1366,12 @@ static struct stream_encoder *dcn31_stream_encoder_create(
vpg = dcn31_vpg_create(ctx, vpg_inst);
afmt = dcn31_afmt_create(ctx, afmt_inst);
- if (!enc1 || !vpg || !afmt)
+ if (!enc1 || !vpg || !afmt) {
+ kfree(enc1);
+ kfree(vpg);
+ kfree(afmt);
return NULL;
+ }
if (ctx->asic_id.chip_family == FAMILY_YELLOW_CARP &&
ctx->asic_id.hw_internal_rev == YELLOW_CARP_B0) {
@@ -1418,8 +1422,12 @@ static struct hpo_dp_stream_encoder *dcn31_hpo_dp_stream_encoder_create(
vpg = dcn31_vpg_create(ctx, vpg_inst);
apg = dcn31_apg_create(ctx, apg_inst);
- if (!hpo_dp_enc31 || !vpg || !apg)
+ if (!hpo_dp_enc31 || !vpg || !apg) {
+ kfree(hpo_dp_enc31);
+ kfree(vpg);
+ kfree(apg);
return NULL;
+ }
dcn31_hpo_dp_stream_encoder_construct(hpo_dp_enc31, ctx, ctx->dc_bios,
hpo_dp_inst, eng_id, vpg, apg,
--
2.38.1