qlcnic: fix pci semaphore checks

Driver should not go ahead with fw recovery if fails to acquire
semaphore.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 3c8a963..bfc5510 100644 (file)
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -1949,8 +1949,8 @@ static void qlcnic_poll_controller(struct net_device *netdev)
 }
 #endif
 
-static void
-qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
+static int
+qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
 {
        u32  val;
 
@@ -1958,7 +1958,7 @@ qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
                        state != QLCNIC_DEV_NEED_QUISCENT);
 
        if (qlcnic_api_lock(adapter))
-               return ;
+               return -EIO;
 
        val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
 
@@ -1970,6 +1970,8 @@ qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
        QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
 
        qlcnic_api_unlock(adapter);
+
+       return 0;
 }
 
 static int
@@ -2195,7 +2197,8 @@ qlcnic_detach_work(struct work_struct *work)
        if (adapter->temp == QLCNIC_TEMP_PANIC)
                goto err_ret;
 
-       qlcnic_set_drv_state(adapter, adapter->dev_state);
+       if (qlcnic_set_drv_state(adapter, adapter->dev_state))
+               goto err_ret;
 
        adapter->fw_wait_cnt = 0;