From: =?UTF-8?q?Ernst=20Sj=C3=B6strand?= <ernstp@gmail.com>
Date: Wed, 8 Nov 2017 22:47:06 +0100
Subject: amd/display: Fix potential null dereference in dce_calcs.c
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Git-commit: f368d3bfde225199eef2216b03e0ba4944a3434a
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Reported by smatch:
bw_calcs() error: potential null dereference 'data'
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
@@ -2794,6 +2794,8 @@ bool bw_calcs(struct dc_context *ctx,
{
struct bw_calcs_data *data = kzalloc(sizeof(struct bw_calcs_data),
GFP_KERNEL);
+ if (!data)
+ return false;
populate_initial_data(pipe, pipe_count, data);