vkFreeDescriptorSets

To free allocated descriptor sets, call:

VkResult vkFreeDescriptorSets(
    VkDevice device,
    VkDescriptorPool descriptorPool,
    uint32_t descriptorSetCount,
    const VkDescriptorSet* pDescriptorSets);

device is the logical device that owns the descriptor pool.
descriptorPool is the descriptor pool from which the descriptor sets were allocated.
descriptorSetCount is the number of elements in the pDescriptorSets array.
pDescriptorSets is a pointer to an array of handles to VkDescriptorSet objects.

After calling vkFreeDescriptorSets, all descriptor sets in pDescriptorSets are invalid.

Valid Usage

VUID-vkFreeDescriptorSets-pDescriptorSets-00309

All submitted commands that refer to any element of pDescriptorSets must have completed execution

VUID-vkFreeDescriptorSets-pDescriptorSets-00310

pDescriptorSets must be a valid pointer to an array of descriptorSetCount VkDescriptorSet handles, each element of which must either be a valid handle or VK_NULL_HANDLE