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rtlwifi: rtl8192se: 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: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger 2012-12-27 10:37:31 -06:00 committed by John W. Linville
parent 708b70ff31
commit f6aa93ad03
1 changed files with 12 additions and 1 deletions
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13
drivers/net/wireless/rtlwifi/rtl8192se/trx.c
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@ -611,6 +611,11 @@ void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
PCI_DMA_TODEVICE);
u8 bw_40 = 0;
if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error");
return;
}
if (mac->opmode == NL80211_IFTYPE_STATION) {
bw_40 = mac->bw_40;
} else if (mac->opmode == NL80211_IFTYPE_AP ||
@ -763,6 +768,7 @@ void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
bool firstseg, bool lastseg, struct sk_buff *skb)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
@ -770,7 +776,12 @@ void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
PCI_DMA_TODEVICE);
/* Clear all status */
if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
"DMA mapping error");
return;
}
/* Clear all status */
CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
/* This bit indicate this packet is used for FW download. */