[dpdk-dev] [PATCH v3 12/17] net/i40e/base: avoid potential null pointer dereference

[Jingjing Wu]

Signed-off-by: Jingjing Wu <jingjing...@intel.com>
---
 drivers/net/i40e/base/i40e_common.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/i40e/base/i40e_common.c 
b/drivers/net/i40e/base/i40e_common.c
index 3f3b275..78ed2a8 100644
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -330,13 +330,15 @@ void i40e_debug_aq(struct i40e_hw *hw, enum 
i40e_debug_mask mask, void *desc,
                   void *buffer, u16 buf_len)
 {
        struct i40e_aq_desc *aq_desc = (struct i40e_aq_desc *)desc;
-       u16 len = LE16_TO_CPU(aq_desc->datalen);
        u8 *buf = (u8 *)buffer;
+       u16 len;
        u16 i = 0;
 
        if ((!(mask & hw->debug_mask)) || (desc == NULL))
                return;
 
+       len = LE16_TO_CPU(aq_desc->datalen);
+
        i40e_debug(hw, mask,
                   "AQ CMD: opcode 0x%04X, flags 0x%04X, datalen 0x%04X, retval 
0x%04X\n",
                   LE16_TO_CPU(aq_desc->opcode),
-- 
2.4.11