[PATCH -next] qed: Fix possible memory leak in qed_dcbnl_get_ieee_pfc()

[Wei Yongjun]

'dcbx_info is malloced in qed_dcbnl_get_ieee_pfc() and should be freed
before leaving from the error handling cases, otherwise it will cause
memory leak.

Fixes: a1d8d8a51e83 ("qed: Add dcbnl support.")
Signed-off-by: Wei Yongjun <weiyj...@gmail.com>
---
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c 
b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index 226cb08..b900dfb 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -1968,6 +1968,7 @@ static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
 
        if (!dcbx_info->operational.ieee) {
                DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
+               kfree(dcbx_info);
                return -EINVAL;
        }