From eafe25e0afaf45a4e38f9b3560ac774a2395c695 Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Tue, 13 Aug 2013 10:34:55 +0300 Subject: [PATCH] iwlwifi: return -ENOMEM instead of NULL when OOM in iwl_drv_start() The callers of iwl_drv_start() are probe functions. If a probe function returns 0, it means it succeeded. So if NULL was returned by iwl_drv_start(), it would be considered as a success. Fix this by returning -ENOMEM if the driver struct allocation fails in iwl_drv_start(). Signed-off-by: Luciano Coelho Signed-off-by: Johannes Berg --- drivers/net/wireless/iwlwifi/iwl-drv.c | 8 +++++--- drivers/net/wireless/iwlwifi/pcie/drv.c | 2 +- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c index e88397b..99e1da3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/iwlwifi/iwl-drv.c @@ -1032,8 +1032,10 @@ struct iwl_drv *iwl_drv_start(struct iwl_trans *trans, int ret; drv = kzalloc(sizeof(*drv), GFP_KERNEL); - if (!drv) - return NULL; + if (!drv) { + ret = -ENOMEM; + goto err; + } drv->trans = trans; drv->dev = trans->dev; @@ -1078,7 +1080,7 @@ err_free_dbgfs: err_free_drv: #endif kfree(drv); - +err: return ERR_PTR(ret); } diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c index e179efe..567ef01 100644 --- a/drivers/net/wireless/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/iwlwifi/pcie/drv.c @@ -332,7 +332,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) trans_pcie = IWL_TRANS_GET_PCIE_TRANS(iwl_trans); trans_pcie->drv = iwl_drv_start(iwl_trans, cfg); - if (IS_ERR_OR_NULL(trans_pcie->drv)) { + if (IS_ERR(trans_pcie->drv)) { ret = PTR_ERR(trans_pcie->drv); goto out_free_trans; } -- 2.7.4