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drm/amdgpu: Zero-initialize mqd backup memory

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Zero-initialize mqd backup memory, otherwise the check for
'already-backed-up' could go wrong.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar
2024-10-15 09:53:51 +05:30
committed by Alex Deucher
parent 0642c95efb
commit 8e3a3e847e
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
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@@ -405,7 +405,7 @@ int amdgpu_gfx_mqd_sw_init(struct amdgpu_device *adev,
}
/* prepare MQD backup */
kiq->mqd_backup = kmalloc(mqd_size, GFP_KERNEL);
kiq->mqd_backup = kzalloc(mqd_size, GFP_KERNEL);
if (!kiq->mqd_backup) {
dev_warn(adev->dev,
"no memory to create MQD backup for ring %s\n", ring->name);
@@ -428,7 +428,7 @@ int amdgpu_gfx_mqd_sw_init(struct amdgpu_device *adev,
ring->mqd_size = mqd_size;
/* prepare MQD backup */
adev->gfx.me.mqd_backup[i] = kmalloc(mqd_size, GFP_KERNEL);
adev->gfx.me.mqd_backup[i] = kzalloc(mqd_size, GFP_KERNEL);
if (!adev->gfx.me.mqd_backup[i]) {
dev_warn(adev->dev, "no memory to create MQD backup for ring %s\n", ring->name);
return -ENOMEM;
@@ -452,7 +452,7 @@ int amdgpu_gfx_mqd_sw_init(struct amdgpu_device *adev,
ring->mqd_size = mqd_size;
/* prepare MQD backup */
adev->gfx.mec.mqd_backup[j] = kmalloc(mqd_size, GFP_KERNEL);
adev->gfx.mec.mqd_backup[j] = kzalloc(mqd_size, GFP_KERNEL);
if (!adev->gfx.mec.mqd_backup[j]) {
dev_warn(adev->dev, "no memory to create MQD backup for ring %s\n", ring->name);
return -ENOMEM;