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rtlwifi: rtl8192c_common: rtl8192de: Check for allocation failures

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In https://bugzilla.redhat.com/show_bug.cgi?id=771656, a kernel bug was
triggered due to a failed skb allocation that was not checked. This event
lead to an audit of all memory allocations in the complete rtlwifi family
of drivers. This patch fixes the rest.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger
2012-01-07 20:46:40 -06:00
committed by John W. Linville
parent 39d02a7d90
commit 76a92be537
4 changed files with 20 additions and 10 deletions
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2
drivers/net/wireless/rtlwifi/pci.c
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@@ -652,6 +652,8 @@ static void _rtl_receive_one(struct ieee80211_hw *hw, struct sk_buff *skb,
return;
uskb = dev_alloc_skb(skb->len + 128);
if (!uskb)
return; /* exit if allocation failed */
memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status, sizeof(rx_status));
pdata = (u8 *)skb_put(uskb, skb->len);
memcpy(pdata, skb->data, skb->len);