Changeset 629 for GPL/branches/uniaud32-next/lib32/pci.c

Timestamp:

Jan 4, 2021, 10:15:17 AM (5 years ago)

Author:

Paul Smedley

Message:

Update source to linux 5.10.4 level

File:

• GPL/branches/uniaud32-next/lib32/pci.c (modified) (1 diff)

GPL/branches/uniaud32-next/lib32/pci.c

@@ -1133 +1133 @@
 #endif
 
+/**
+ * pci_status_get_and_clear_errors - return and clear error bits in PCI_STATUS
+ * @pdev: the PCI device
+ *
+ * Returns error bits set in PCI_STATUS and clears them.
+ */
+int pci_status_get_and_clear_errors(struct pci_dev *pdev)
+{
+        u16 status;
+        int ret;
+
+        ret = pci_read_config_word(pdev, PCI_STATUS, &status);
+        if (ret != PCIBIOS_SUCCESSFUL)
+                return -EIO;
+
+        status &= PCI_STATUS_ERROR_BITS;
+        if (status)
+                pci_write_config_word(pdev, PCI_STATUS, status);
+
+        return status;
+}
+