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Commit 708b70ff authored by Larry Finger's avatar Larry Finger Committed by John W. Linville
Browse files

rtlwifi: rtl8192de: Fix warning for unchecked pci_map_single() call 



Kernel 3.8 implements checking of all DMA mapping calls and issues
a WARNING for the first it finds that is not checked.

Signed-off-by: default avatarLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 91459101

drivers/net/wireless/rtlwifi/rtl8192de/trx.c

+10 −0
Original line number Diff line number Diff line
@@ -587,6 +587,11 @@ void rtl92de_tx_fill_desc(struct ieee80211_hw *hw, 
	buf_len = skb->len;

	mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,

				 PCI_DMA_TODEVICE);

	if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {

		RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,

			 "DMA mapping error");

		return;

	}

	CLEAR_PCI_TX_DESC_CONTENT(pdesc, sizeof(struct tx_desc_92d));

	if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {

		firstseg = true;
@@ -740,6 +745,11 @@ void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw, 
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

	__le16 fc = hdr->frame_control;



	if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {

		RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,

			 "DMA mapping error");

		return;

	}

	CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE);

	if (firstseg)

		SET_TX_DESC_OFFSET(pdesc, USB_HWDESC_HEADER_LEN);