[dpdk-dev] [PATCH v3 11/36] e1000/base: add return value handler when check manage mode

[Wenzhuo Lu]

Adding code, where missing, to handle the case when hw->nvm.ops.read returns
an error value.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
 drivers/net/e1000/base/e1000_82571.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/e1000/base/e1000_82571.c 
b/drivers/net/e1000/base/e1000_82571.c
index 5e0e43c..7c279db 100644
--- a/drivers/net/e1000/base/e1000_82571.c
+++ b/drivers/net/e1000/base/e1000_82571.c
@@ -1452,10 +1452,14 @@ STATIC void e1000_clear_vfta_82571(struct e1000_hw *hw)
 STATIC bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
 {
        u16 data;
+       s32 ret_val;

        DEBUGFUNC("e1000_check_mng_mode_82574");

-       hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG, 1, &data);
+       ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG, 1, &data);
+       if (ret_val)
+               return false;
+
        return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
 }

-- 
1.9.3