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staging/wlan-ng: Fix 'Branch condition evaluates to a garbage value' in p80211netdev.c

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clang/scan-build complains that:
p80211netdev.c:451:6: warning: Branch condition evaluates to a garbage
value
        if ((p80211_wep.data) && (p80211_wep.data != skb->data))
	            ^~~~~~~~~~~~~~~~~

This can happen in p80211knetdev_hard_start_xmit if
- if (wlandev->state != WLAN_DEVICE_OPEN) evaluates to true.
the execution flow then continues at the 'failed' label where
p80211_wep.data is used without being initialized first.

-> Initialize the data field to NULL to fix this issue.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Huewe 2013-02-14 03:37:10 +01:00 committed by Greg Kroah-Hartman
parent 0bcc0429bd
commit fae7e4d393
1 changed files with 2 additions and 0 deletions
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2
drivers/staging/wlan-ng/p80211netdev.c
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@ -351,6 +351,8 @@ static int p80211knetdev_hard_start_xmit(struct sk_buff *skb,
union p80211_hdr p80211_hdr;
struct p80211_metawep p80211_wep;
p80211_wep.data = NULL;
if (skb == NULL)
return NETDEV_TX_OK;