radv: Return correct result in EnumeratePhysicalDevices

If pPhysicalDevices is too small for all physical devices,
the driver must return VK_INCOMPLETE. Since only a single
physical device is supported, this is only the case when
pPhysicalDeviceCount == 0 && pPhysicalDevices != NULL.

Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 6e06863f8ea..71b1481a5ae 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -295,6 +295,8 @@ VkResult radv_EnumeratePhysicalDevices(
 	} else if (*pPhysicalDeviceCount >= 1) {
 		pPhysicalDevices[0] = radv_physical_device_to_handle(&instance->physicalDevice);
 		*pPhysicalDeviceCount = 1;
+	} else if (*pPhysicalDeviceCount < instance->physicalDeviceCount) {
+		return VK_INCOMPLETE;
 	} else {
 		*pPhysicalDeviceCount = 0;
 	}