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authorLarry Finger <Larry.Finger@lwfinger.net>2012-12-27 17:37:29 +0100
committerJohn W. Linville <linville@tuxdriver.com>2013-01-02 20:38:32 +0100
commit9145910161ebe227fcdacbc771fadfa55a364763 (patch)
tree42d87477c70056d1c33851b12bfd366230e254d0 /drivers
parentrtlwifi: Fix warning for unchecked pci_map_single() call (diff)
downloadlinux-9145910161ebe227fcdacbc771fadfa55a364763.tar.xz
linux-9145910161ebe227fcdacbc771fadfa55a364763.zip
rtlwifi: rtl8192ce: 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/rtlwifi/rtl8192ce/trx.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
index 173424756149..c31795e379f7 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
@@ -611,8 +611,14 @@ void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
dma_addr_t mapping = pci_map_single(rtlpci->pdev,
skb->data, skb->len,
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;
+ }
rcu_read_lock();
sta = get_sta(hw, mac->vif, mac->bssid);
if (mac->opmode == NL80211_IFTYPE_STATION) {
@@ -774,6 +780,11 @@ void rtl92ce_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)