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drm/amdkfd: fix a memory leak in device_queue_manager_init()

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If dqm->ops.initialize() fails, add deallocate_hiq_sdma_mqd()
to release the memory allocated by allocate_hiq_sdma_mqd().
Move deallocate_hiq_sdma_mqd() up to ensure proper function
visibility at the point of use.

Fixes: 11614c36bc ("drm/amdkfd: Allocate MQD trunk for HIQ and SDMA")
Signed-off-by: Haoxiang Li <[email protected]>
Signed-off-by: Felix Kuehling <[email protected]>
Reviewed-by: Oak Zeng <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
This commit is contained in:
Haoxiang Li authored and Alex Deucher committed 2026-01-10 14:21:52 -05:00
1 parent d967509651
commit b7cccc8286
1 file changed
+11 -8
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drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+11 -8
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@@ -2916,6 +2916,14 @@ static int allocate_hiq_sdma_mqd(struct device_queue_manager *dqm)
return retval;
}
static void deallocate_hiq_sdma_mqd(struct kfd_node *dev,
struct kfd_mem_obj *mqd)
{
WARN(!mqd, "No hiq sdma mqd trunk to free");
amdgpu_amdkfd_free_gtt_mem(dev->adev, &mqd->gtt_mem);
}
struct device_queue_manager *device_queue_manager_init(struct kfd_node *dev)
{
struct device_queue_manager *dqm;
@@ -3041,19 +3049,14 @@ struct device_queue_manager *device_queue_manager_init(struct kfd_node *dev)
return dqm;
}
if (!dev->kfd->shared_resources.enable_mes)
deallocate_hiq_sdma_mqd(dev, &dqm->hiq_sdma_mqd);
out_free:
kfree(dqm);
return NULL;
}
static void deallocate_hiq_sdma_mqd(struct kfd_node *dev,
struct kfd_mem_obj *mqd)
{
WARN(!mqd, "No hiq sdma mqd trunk to free");
amdgpu_amdkfd_free_gtt_mem(dev->adev, &mqd->gtt_mem);
}
void device_queue_manager_uninit(struct device_queue_manager *dqm)
{
dqm->ops.stop(dqm);