qlcnic: protect qlicnic_attach_func with rtnl_lock

qlcnic_attach_func requires rtnl_lock to be held.

Cc: Dept-GELinuxNICDev@qlogic.com
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 1205f6f9c941735a9f7bafb88e36705e4a5de7f2..1c29105b6c364f0064da46f0e060e11208b2526e 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -3952,8 +3952,14 @@ static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
 
 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
 {
-       return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
-                               PCI_ERS_RESULT_RECOVERED;
+       pci_ers_result_t res;
+
+       rtnl_lock();
+       res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
+                                        PCI_ERS_RESULT_RECOVERED;
+       rtnl_unlock();
+
+       return res;
 }
 
 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)