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musicpal: Catch null TX qeueues

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They likely represent invalid queues that should be skipped. We already
do this for RX queues. Wish I had a spec...

Credits go to malc for analyzing the issue and suggesting this fix.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-09-18 20:51:22 +02:00 committed by Anthony Liguori
parent 0cb892aa26
commit 2e87c5b937
1 changed files with 3 additions and 1 deletions
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4
hw/musicpal.c
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@ -238,7 +238,9 @@ static void eth_send(mv88w8618_eth_state *s, int queue_index)
uint8_t buf[2048]; uint8_t buf[2048];
int len; int len;
if (!desc_addr) {
return;
}
do { do {
eth_tx_desc_get(desc_addr, &desc); eth_tx_desc_get(desc_addr, &desc);
if (desc.cmdstat & MP_ETH_TX_OWN) { if (desc.cmdstat & MP_ETH_TX_OWN) {