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mt76: mt7663u: fix memory leaks in mt7663u_probe

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Fix the two following memory leaks in mt7663u_probe:
1- if device power-own times out, remove ieee80211 hw device.
2- if mt76u queues allocation fails, remove pending urbs.

Fixes: eb99cc95c3b65 ("mt76: mt7615: introduce mt7663u support")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/e4098f0c8a9ac51997de07f38c2bcdf7042d6db1.1592755166.git.lorenzo@kernel.org
This commit is contained in:
Lorenzo Bianconi
2020-08-23 11:03:48 +02:00
committed by Felix Fietkau
parent 8c7c1a207d
commit f0beb7cbc4
2 changed files with 23 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files
usb.c
+17 -5
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@@ -1021,11 +1021,16 @@ static int mt76u_alloc_tx(struct mt76_dev *dev)
static void mt76u_free_tx(struct mt76_dev *dev)
{
struct mt76_queue *q;
int i, j;
int i;
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
struct mt76_queue *q;
int j;
q = dev->q_tx[i].q;
if (!q)
continue;
for (j = 0; j < q->ndesc; j++)
usb_free_urb(q->entry[j].urb);
}
@@ -1033,19 +1038,24 @@ static void mt76u_free_tx(struct mt76_dev *dev)
void mt76u_stop_tx(struct mt76_dev *dev)
{
struct mt76_queue_entry entry;
struct mt76_queue *q;
int i, j, ret;
int ret;
mt76_worker_disable(&dev->tx_worker);
ret = wait_event_timeout(dev->tx_wait, !mt76_has_tx_pending(&dev->phy),
HZ / 5);
if (!ret) {
struct mt76_queue_entry entry;
struct mt76_queue *q;
int i, j;
dev_err(dev->dev, "timed out waiting for pending tx\n");
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
q = dev->q_tx[i].q;
if (!q)
continue;
for (j = 0; j < q->ndesc; j++)
usb_kill_urb(q->entry[j].urb);
}
@@ -1055,6 +1065,8 @@ void mt76u_stop_tx(struct mt76_dev *dev)
*/
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
q = dev->q_tx[i].q;
if (!q)
continue;
/* Assure we are in sync with killed tasklet. */
spin_lock_bh(&q->lock);