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orinoco: correct timeout logic in __orinoco_hw_set_tkip_key()

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If the value read from HERMES_RID_TXQUEUEEMPTY becomes 0 after exactly
100 readings, we wrongly consider it a timeout.  Rewrite the clever
while loop as a for loop that does the right thing and looks simpler.

Reported by Juha Leppanen <juha_motorsportcom@luukku.com>

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Pavel Roskin 2009-04-09 21:41:05 -04:00 committed by John W. Linville
parent 23a99840d5
commit 91fe9ca74e
1 changed files with 3 additions and 5 deletions
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8
drivers/net/wireless/orinoco/hw.c
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@ -372,15 +372,13 @@ int __orinoco_hw_set_tkip_key(hermes_t *hw, int key_idx, int set_tx,
}
/* Wait upto 100ms for tx queue to empty */
k = 100;
do {
k--;
for (k = 100; k > 0; k--) {
udelay(1000);
ret = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_TXQUEUEEMPTY,
&xmitting);
if (ret)
if (ret || !xmitting)
break;
} while ((k > 0) && xmitting);
}
if (k == 0)
ret = -ETIMEDOUT;