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Date: Mon, 11 Nov 2019 19:29:12 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Harry Wentland <harry.wentland@....com>,
zhongshiqi <zhong.shiqi@....com.cn>,
Alex Deucher <alexander.deucher@....com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.3 170/193] dc.c:use kzalloc without test
From: zhongshiqi <zhong.shiqi@....com.cn>
[ Upstream commit 364593f3ee5fdefc6efd89475e1804c928b4e6ba ]
dc.c:583:null check is needed after using kzalloc function
Reviewed-by: Harry Wentland <harry.wentland@....com>
Signed-off-by: zhongshiqi <zhong.shiqi@....com.cn>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 730f97ba8dbbe..dd4731ab935cd 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -566,6 +566,10 @@ static bool construct(struct dc *dc,
#ifdef CONFIG_DRM_AMD_DC_DCN2_0
// Allocate memory for the vm_helper
dc->vm_helper = kzalloc(sizeof(struct vm_helper), GFP_KERNEL);
+ if (!dc->vm_helper) {
+ dm_error("%s: failed to create dc->vm_helper\n", __func__);
+ goto fail;
+ }
#endif
memcpy(&dc->bb_overrides, &init_params->bb_overrides, sizeof(dc->bb_overrides));
--
2.20.1
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