iwlwifi: missing error code in iwl_trans_pcie_alloc()

We don't set the error code here so we end up returning ERR_PTR(0) which
is NULL.  The caller doesn't expect that so it results in a NULL
dereference.

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

1 files changed, 2 insertions, 1 deletions

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);