[dpdk-dev,v4,12/17] net/i40e/base: avoid potential null pointer dereference
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Commit Message
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
---
drivers/net/i40e/base/i40e_common.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
@@ -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),