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| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2019-04-06 00:26:38 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-04-25 19:51:46 +0300 |
| commit | d1717282afd54a34f01628e5a4559f913c6b0317 (patch) | |
| tree | f167d060a018983dcd2e4a4917b7fa07d132f9e6 /drivers/net | |
| parent | b25105e126e79d8fb5a8c33b009a653f4a4aea71 (diff) | |
| download | linux-d1717282afd54a34f01628e5a4559f913c6b0317.tar.bz2 | |
mwl8k: fix error handling in mwl8k_post_cmd()
If pci_map_single() fails in mwl8k_post_cmd(),
it returns -ENOMEM immediately, while cleanup is required.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/marvell/mwl8k.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/wireless/marvell/mwl8k.c b/drivers/net/wireless/marvell/mwl8k.c index 8e4e9b6919e0..e0df51b62e97 100644 --- a/drivers/net/wireless/marvell/mwl8k.c +++ b/drivers/net/wireless/marvell/mwl8k.c @@ -2234,8 +2234,10 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) dma_size = le16_to_cpu(cmd->length); dma_addr = pci_map_single(priv->pdev, cmd, dma_size, PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(priv->pdev, dma_addr)) - return -ENOMEM; + if (pci_dma_mapping_error(priv->pdev, dma_addr)) { + rc = -ENOMEM; + goto exit; + } priv->hostcmd_wait = &cmd_wait; iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); @@ -2275,6 +2277,7 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) ms); } +exit: if (bitmap) mwl8k_enable_bsses(hw, true, bitmap); |