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ath9k: check for NULL rate when using ieee80211_get_rts_cts_rate()

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ieee80211_get_rts_cts_rate() can return NULL, so don't rely
on its members when it does return NULL.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2013-10-14 17:42:10 -07:00 committed by John W. Linville
parent 94e7876daa
commit 09b029b6b6
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/ath/ath9k/xmit.c
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@ -2006,6 +2006,9 @@ static void setup_frame_info(struct ieee80211_hw *hw,
fi->keyix = ATH9K_TXKEYIX_INVALID;
fi->keytype = keytype;
fi->framelen = framelen;
if (!rate)
return;
fi->rtscts_rate = rate->hw_value;
if (short_preamble)
fi->rtscts_rate |= rate->hw_value_short;