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iwlwifi: pcie: fix context info memory leak

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[ Upstream commit 2d6bc752cc2806366d9a4fd577b3f6c1f7a7e04e ]

If the image loader allocation fails, we leak all the previously
allocated memory. Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.97172cbaa67c.I3473233d0ad01a71aa9400832fb2b9f494d88a11@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg 2021-01-15 13:05:56 +02:00 committed by Greg Kroah-Hartman
parent fbdf0bf97c
commit 05132a72cc
1 changed files with 9 additions and 2 deletions
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11
drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
View File

@ -245,8 +245,10 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
/* Allocate IML */ /* Allocate IML */
iml_img = dma_alloc_coherent(trans->dev, trans->iml_len, iml_img = dma_alloc_coherent(trans->dev, trans->iml_len,
&trans_pcie->iml_dma_addr, GFP_KERNEL); &trans_pcie->iml_dma_addr, GFP_KERNEL);
if (!iml_img) if (!iml_img) {
return -ENOMEM; ret = -ENOMEM;
goto err_free_ctxt_info;
}
memcpy(iml_img, trans->iml, trans->iml_len); memcpy(iml_img, trans->iml, trans->iml_len);
@ -284,6 +286,11 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
return 0; return 0;
err_free_ctxt_info:
dma_free_coherent(trans->dev, sizeof(*trans_pcie->ctxt_info_gen3),
trans_pcie->ctxt_info_gen3,
trans_pcie->ctxt_info_dma_addr);
trans_pcie->ctxt_info_gen3 = NULL;
err_free_prph_info: err_free_prph_info:
dma_free_coherent(trans->dev, dma_free_coherent(trans->dev,
sizeof(*prph_info), sizeof(*prph_info),