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ath5k: remove some unneeded error handling code

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th5k_hw_setup_tx_queue() returns a valid offset into the ah->ah_txq[]
array.  The ah->ah_txq[] and the ah->txqs[] array are the same size.
Both have AR5K_NUM_TX_QUEUES elements.  So this error handling code
will never trigger.

Also it's wrong.  The call to ath5k_hw_release_tx_queue() with a qnum
of AR5K_NUM_TX_QUEUES or more will just trigger a WARN_ON() and
return.  Or if it missed the WARN_ON(), it would just corrupt some
memory and return.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Dan Carpenter 2011-10-05 08:46:37 +03:00 committed by John W. Linville
parent 28a1bcdb57
commit 8fb7475bde
1 changed files with 0 additions and 6 deletions
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6
drivers/net/wireless/ath/ath5k/base.c
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@ -921,12 +921,6 @@ ath5k_txq_setup(struct ath5k_hw *ah,
*/
return ERR_PTR(qnum);
}
if (qnum >= ARRAY_SIZE(ah->txqs)) {
ATH5K_ERR(ah, "hw qnum %u out of range, max %tu!\n",
qnum, ARRAY_SIZE(ah->txqs));
ath5k_hw_release_tx_queue(ah, qnum);
return ERR_PTR(-EINVAL);
}
txq = &ah->txqs[qnum];
if (!txq->setup) {
txq->qnum = qnum;