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mt76: mt7663s: fix a possible ple quota underflow

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Properly account current consumed ple quota in mt7663s_tx_pick_quota
routine and avoid possible underflow.

Fixes: 6ef2d665f6 ("mt76: mt7663s: split mt7663s_tx_update_sched in mt7663s_tx_{pick,update}_quota")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2020-10-05 17:22:23 +02:00 committed by Felix Fietkau
parent 80dda1ed49
commit 1c79a190e9
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/mediatek/mt76/mt7615/sdio_txrx.c
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@ -180,7 +180,7 @@ static int mt7663s_tx_pick_quota(struct mt76_sdio *sdio, enum mt76_txq_id qid,
return -EBUSY;
} else {
if (sdio->sched.pse_data_quota < *pse_size + pse_sz ||
sdio->sched.ple_data_quota < *ple_size)
sdio->sched.ple_data_quota < *ple_size + 1)
return -EBUSY;
*ple_size = *ple_size + 1;