net/cxgbe: fix possible null pointer dereference

[dpdk.git] / drivers / net / cxgbe / base / t4_hw.c

diff --git a/drivers/net/cxgbe/base/t4_hw.c b/drivers/net/cxgbe/base/t4_hw.c
index c089b068d2ac7a845a31d1a93300da9b13b92025..9dca8da16d69cefca854d031c649a74d093cc46d 100644 (file)
--- a/drivers/net/cxgbe/base/t4_hw.c
+++ b/drivers/net/cxgbe/base/t4_hw.c
@@ -359,6 +359,9 @@ int t4_wr_mbox_meat_timeout(struct adapter *adap, int mbox,
        struct mbox_entry entry;
        u32 pcie_fw = 0;
 
+       if (!temp)
+               return -ENOMEM;
+
        if ((size & 15) || size > MBOX_LEN) {
                free(temp);
                return -EINVAL;