[PATCH] iwlwifi: pcie: Fix error code in iwl_trans_pcie_alloc()

[Dan Carpenter]

We accidentally forgot to propogate the error code on this path.  It
means we return ERR_PTR(0) which is NULL and it results in a NULL
dereference in the caller.

Fixes: 2e5d4a8f61dc ("iwlwifi: pcie: Add new configuration to enable MSIX")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c 
b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 92b3a55d0fbc..f95eec52508e 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3150,7 +3150,8 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev 
*pdev,
        init_waitqueue_head(&trans_pcie->d0i3_waitq);
 
        if (trans_pcie->msix_enabled) {
-               if (iwl_pcie_init_msix_handler(pdev, trans_pcie))
+               ret = iwl_pcie_init_msix_handler(pdev, trans_pcie);
+               if (ret)
                        goto out_no_pci;
         } else {
                ret = iwl_pcie_alloc_ict(trans);