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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	HaoPing.Liu@amd.com, sunpeng.li@amd.com, harry.wentland@amd.com,
	Xinhui.Pan@amd.com, Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>,
	amd-gfx@lists.freedesktop.org, alex.hung@amd.com,
	aurabindo.pillai@amd.com, dri-devel@lists.freedesktop.org,
	daniel@ffwll.ch, Alex Deucher <alexander.deucher@amd.com>,
	airlied@gmail.com, gehao <gehao@kylinos.cn>,
	christian.koenig@amd.com
Subject: [PATCH AUTOSEL 6.1 13/85] drm/amd/display: prevent memory leak
Date: Sun, 18 Dec 2022 11:00:30 -0500	[thread overview]
Message-ID: <20221218160142.925394-13-sashal@kernel.org> (raw)
In-Reply-To: <20221218160142.925394-1-sashal@kernel.org>

From: gehao <gehao@kylinos.cn>

[ Upstream commit d232afb1f3417ae8194ccf19ad3a8360e70e104e ]

In dce6(0,1,4)_create_resource_pool and dce80_create_resource_pool
the allocated memory should be released if construct pool fails.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: gehao <gehao@kylinos.cn>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@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/dce60/dce60_resource.c | 3 +++
 drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dce60/dce60_resource.c b/drivers/gpu/drm/amd/display/dc/dce60/dce60_resource.c
index fc6aa098bda0..8db9f7514466 100644
--- a/drivers/gpu/drm/amd/display/dc/dce60/dce60_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce60/dce60_resource.c
@@ -1128,6 +1128,7 @@ struct resource_pool *dce60_create_resource_pool(
 	if (dce60_construct(num_virtual_links, dc, pool))
 		return &pool->base;
 
+	kfree(pool);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }
@@ -1325,6 +1326,7 @@ struct resource_pool *dce61_create_resource_pool(
 	if (dce61_construct(num_virtual_links, dc, pool))
 		return &pool->base;
 
+	kfree(pool);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }
@@ -1518,6 +1520,7 @@ struct resource_pool *dce64_create_resource_pool(
 	if (dce64_construct(num_virtual_links, dc, pool))
 		return &pool->base;
 
+	kfree(pool);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
index b28025960050..5825e6f412bd 100644
--- a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
@@ -1137,6 +1137,7 @@ struct resource_pool *dce80_create_resource_pool(
 	if (dce80_construct(num_virtual_links, dc, pool))
 		return &pool->base;
 
+	kfree(pool);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }
@@ -1336,6 +1337,7 @@ struct resource_pool *dce81_create_resource_pool(
 	if (dce81_construct(num_virtual_links, dc, pool))
 		return &pool->base;
 
+	kfree(pool);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }
-- 
2.35.1


  parent reply	other threads:[~2022-12-18 16:02 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20221218160142.925394-1-sashal@kernel.org>
2022-12-18 16:00 ` [PATCH AUTOSEL 6.1 12/85] drm/amd/display: skip commit minimal transition state Sasha Levin
2022-12-18 16:00 ` Sasha Levin [this message]
2022-12-18 16:00 ` [PATCH AUTOSEL 6.1 15/85] Revert "drm/amd/display: Limit max DSC target bpp for specific monitors" Sasha Levin
2022-12-18 16:00 ` [PATCH AUTOSEL 6.1 31/85] drm/amdgpu: Fix type of second parameter in trans_msg() callback Sasha Levin
2022-12-18 16:00 ` [PATCH AUTOSEL 6.1 32/85] drm/amdgpu: Fix type of second parameter in odn_edit_dpm_table() callback Sasha Levin
2022-12-18 16:00 ` [PATCH AUTOSEL 6.1 36/85] drm/amd/display: Use min transition for SubVP into MPO Sasha Levin
2022-12-18 16:00 ` [PATCH AUTOSEL 6.1 37/85] drm/amd/display: Disable DRR actions during state commit Sasha Levin
2022-12-18 16:01 ` [PATCH AUTOSEL 6.1 45/85] drm/amd/display: Workaround to increase phantom pipe vactive in pipesplit Sasha Levin
2022-12-18 16:01 ` [PATCH AUTOSEL 6.1 46/85] drm/amd/display: fix array index out of bound error in bios parser Sasha Levin
2022-12-18 16:01 ` [PATCH AUTOSEL 6.1 54/85] drm/amd/display: Fix display corruption w/ VSR enable Sasha Levin
2022-12-18 16:01 ` [PATCH AUTOSEL 6.1 64/85] drm/amdgpu: Fix potential double free and null pointer dereference Sasha Levin
2022-12-18 16:01 ` [PATCH AUTOSEL 6.1 65/85] drm/amd/display: Use the largest vready_offset in pipe group Sasha Levin
2022-12-18 16:01 ` [PATCH AUTOSEL 6.1 66/85] drm/amd/display: Fix DTBCLK disable requests and SRC_SEL programming Sasha Levin

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