net: cnss2: restore pci config space before enable device

When loading wlan driver, driver will check if chip is initialized
by reading pci io FW_IND_INITIALIZED status. While timeout occurred
when wait for above status randomly in multi load-unload process.

Restore pci config space before enable device during resume pci link.

Change-Id: Ib10f739b2321c7cb0e71ad40db571075a56ae48a
Signed-off-by: Kai Liu <kaliu@codeaurora.org>

diff --git a/drivers/net/wireless/cnss2/pci.c b/drivers/net/wireless/cnss2/pci.c
index 8d34d74..b57d3d5 100644 (file)
--- a/drivers/net/wireless/cnss2/pci.c
+++ b/drivers/net/wireless/cnss2/pci.c
@@ -163,15 +163,16 @@ int cnss_resume_pci_link(struct cnss_pci_data *pci_priv)
 
        pci_priv->pci_link_state = PCI_LINK_UP;
 
+       ret = cnss_set_pci_config_space(pci_priv, RESTORE_PCI_CONFIG_SPACE);
+       if (ret)
+               goto out;
+
        ret = pci_enable_device(pci_priv->pci_dev);
        if (ret) {
                cnss_pr_err("Failed to enable PCI device, err = %d\n", ret);
                goto out;
        }
 
-       ret = cnss_set_pci_config_space(pci_priv, RESTORE_PCI_CONFIG_SPACE);
-       if (ret)
-               goto out;
 
        pci_set_master(pci_priv->pci_dev);