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gpu: nvgpu: add checks for kzalloc() allocations

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Check kzalloc() allocations for failures and return
an error if an allocation fails.

Bug 2279948

Change-Id: I8a2c3b84904da897ad6118900c11489c8656c20f
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2020123
(cherry picked from commit fadd0014da)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2298066
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Nitin Kumbhar
2019-02-15 15:16:17 +05:30
committed by mobile promotions
parent ea14973b14
commit aaecfae53f
3 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/nvgpu/clk/clk_prog.c
View File

@@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016-2018, NVIDIA CORPORATION. All rights reserved. * Copyright (c) 2016-2020, NVIDIA CORPORATION. All rights reserved.
* *
* Permission is hereby granted, free of charge, to any person obtaining a * Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"), * copy of this software and associated documentation files (the "Software"),
@@ -628,6 +628,8 @@ static int clk_prog_construct_1x_master(struct gk20a *g,
pclkprog->p_vf_entries = (struct ctrl_clk_clk_prog_1x_master_vf_entry *) pclkprog->p_vf_entries = (struct ctrl_clk_clk_prog_1x_master_vf_entry *)
nvgpu_kzalloc(g, vfsize); nvgpu_kzalloc(g, vfsize);
if (!pclkprog->p_vf_entries)
return -ENOMEM;
memcpy(pclkprog->p_vf_entries, ptmpprog->p_vf_entries, vfsize); memcpy(pclkprog->p_vf_entries, ptmpprog->p_vf_entries, vfsize);

2
drivers/gpu/nvgpu/gk20a/gr_gk20a.c
View File

@@ -3473,6 +3473,8 @@ static int gr_gk20a_init_gr_config(struct gk20a *g, struct gr_gk20a *gr)
gr->sm_to_cluster = nvgpu_kzalloc(g, gr->gpc_count * gr->sm_to_cluster = nvgpu_kzalloc(g, gr->gpc_count *
gr->max_tpc_per_gpc_count * gr->max_tpc_per_gpc_count *
sm_per_tpc * sizeof(struct sm_info)); sm_per_tpc * sizeof(struct sm_info));
if (!gr->sm_to_cluster)
goto clean_up;
} else { } else {
memset(gr->sm_to_cluster, 0, gr->gpc_count * memset(gr->sm_to_cluster, 0, gr->gpc_count *
gr->max_tpc_per_gpc_count * gr->max_tpc_per_gpc_count *

4
drivers/gpu/nvgpu/os/linux/scale.c
View File

@@ -1,7 +1,7 @@
/* /*
* gk20a clock scaling profile * gk20a clock scaling profile
* *
* Copyright (c) 2013-2018, NVIDIA Corporation. All rights reserved. * Copyright (c) 2013-2020, NVIDIA Corporation. All rights reserved.
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License, * under the terms and conditions of the GNU General Public License,
@@ -339,6 +339,8 @@ void gk20a_scale_init(struct device *dev)
return; return;
profile = nvgpu_kzalloc(g, sizeof(*profile)); profile = nvgpu_kzalloc(g, sizeof(*profile));
if (!profile)
return;
profile->dev = dev; profile->dev = dev;
profile->dev_stat.busy = false; profile->dev_stat.busy = false;