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| author | Larry Finger <Larry.Finger@lwfinger.net> | 2012-01-07 20:46:40 -0600 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-01-24 14:08:37 -0500 |
| commit | 76a92be537f1c8c259e393632301446257ca3ea9 (patch) | |
| tree | 2b5e5b43f0eb4e16ac32b07254cb26383a0a0d35 /drivers/net/wireless/rtlwifi/rtl8192de | |
| parent | 39d02a7d90602d4557ee05db2a157a4e0ec3a3d3 (diff) | |
| download | op-kernel-dev-76a92be537f1c8c259e393632301446257ca3ea9.zip op-kernel-dev-76a92be537f1c8c259e393632301446257ca3ea9.tar.gz | |
rtlwifi: rtl8192c_common: rtl8192de: Check for allocation failures
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>
Diffstat (limited to 'drivers/net/wireless/rtlwifi/rtl8192de')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/rtl8192de/fw.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c index 94f5b7d..da58ca4 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c @@ -756,12 +756,16 @@ void rtl92d_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, bool dl_finished) "rtl92d_set_fw_rsvdpagepkt(): HW_VAR_SET_TX_CMD: ALL", u1RsvdPageLoc, 3); skb = dev_alloc_skb(totalpacketlen); - memcpy((u8 *) skb_put(skb, totalpacketlen), &reserved_page_packet, - totalpacketlen); - rtstatus = _rtl92d_cmd_send_packet(hw, skb); + if (!skb) { + dlok = false; + } else { + memcpy((u8 *) skb_put(skb, totalpacketlen), + &reserved_page_packet, totalpacketlen); + rtstatus = _rtl92d_cmd_send_packet(hw, skb); - if (rtstatus) - dlok = true; + if (rtstatus) + dlok = true; + } if (dlok) { RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, "Set RSVD page location to Fw\n"); |
