[PATCH] vdpa: ifcvf: Put device on unsupported feature error

Xiong Weimin <[email protected]> Tue, 4 Aug 2026 17:26:26 +0800
Newsgroups dev.linux.lists.virtualization,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
Route unsupported provisioned features through the common error path after
vdpa_alloc_device() so the allocated device and adapter pointer are
released consistently.

Signed-off-by: Xiong Weimin <[email protected]>
---
 drivers/vdpa/ifcvf/ifcvf_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index ab6d6ab3b..3cd2c35db 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -724,7 +724,8 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
 		if (config->device_features & ~device_features) {
 			IFCVF_ERR(pdev, "The provisioned features 0x%llx are not supported by this device with features 0x%llx\n",
 				  config->device_features, device_features);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto err;
 		}
 		device_features &= config->device_features;
 	}
@@ -748,6 +749,7 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
 	return 0;
 
 err:
+	ifcvf_mgmt_dev->adapter = NULL;
 	put_device(&adapter->vdpa.dev);
 	return ret;
 }
-- 
2.43.0