vfio/pci: Drop unnecessary pcibios_err_to_errno()

As of commit d97ffe236894 ("PCI: Fix return value from
pci_user_{read,write}_config_*()") it's unnecessary to call
pcibios_err_to_errno() to fixup the return value from these functions.

pcibios_err_to_errno() already does simple passthrough of -errno values,
therefore no functional change is expected.

[aw: changelog]
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index 65d4a3015542874e46a299954645705656aeb98d..e4220ca8ca27a01339a65cd6fb2f7fe76f160eef 100644 (file)
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -152,7 +152,7 @@ static int vfio_user_config_read(struct pci_dev *pdev, int offset,
 
        *val = cpu_to_le32(tmp_val);
 
-       return pcibios_err_to_errno(ret);
+       return ret;
 }
 
 static int vfio_user_config_write(struct pci_dev *pdev, int offset,
@@ -173,7 +173,7 @@ static int vfio_user_config_write(struct pci_dev *pdev, int offset,
                break;
        }
 
-       return pcibios_err_to_errno(ret);
+       return ret;
 }
 
 static int vfio_default_config_read(struct vfio_pci_device *vdev, int pos,
@@ -257,7 +257,7 @@ static int vfio_direct_config_read(struct vfio_pci_device *vdev, int pos,
 
        ret = vfio_user_config_read(vdev->pdev, pos, val, count);
        if (ret)
-               return pcibios_err_to_errno(ret);
+               return ret;
 
        if (pos >= PCI_CFG_SPACE_SIZE) { /* Extended cap header mangling */
                if (offset < 4)
@@ -295,7 +295,7 @@ static int vfio_raw_config_read(struct vfio_pci_device *vdev, int pos,
 
        ret = vfio_user_config_read(vdev->pdev, pos, val, count);
        if (ret)
-               return pcibios_err_to_errno(ret);
+               return ret;
 
        return count;
 }
@@ -1089,7 +1089,7 @@ static int vfio_msi_config_write(struct vfio_pci_device *vdev, int pos,
                                                 start + PCI_MSI_FLAGS,
                                                 flags);
                if (ret)
-                       return pcibios_err_to_errno(ret);
+                       return ret;
        }
 
        return count;