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Check IFF_DRV_RUNNING in the re_intr() loop. It can disappear,

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since re_rxeof() drops the lock for some time.

Reported & tested by:	XueFeng Deng <dsnofe yahoo.com.cn>
This commit is contained in:
Gleb Smirnoff 2005-11-22 12:46:15 +00:00
parent 0da07b29c3
commit a9fe9149a8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=152681
1 changed files with 6 additions and 4 deletions
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10
sys/dev/re/if_re.c
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@ -1852,13 +1852,15 @@ re_intr(arg)
if ((status & RL_INTRS_CPLUS) == 0)
break;
if ((status & RL_ISR_RX_OK) ||
(status & RL_ISR_RX_ERR))
if (((status & RL_ISR_RX_OK) ||
(status & RL_ISR_RX_ERR)) &&
ifp->if_drv_flags & IFF_DRV_RUNNING)
re_rxeof(sc);
if ((status & RL_ISR_TIMEOUT_EXPIRED) ||
if (((status & RL_ISR_TIMEOUT_EXPIRED) ||
(status & RL_ISR_TX_ERR) ||
(status & RL_ISR_TX_DESC_UNAVAIL))
(status & RL_ISR_TX_DESC_UNAVAIL)) &&
ifp->if_drv_flags & IFF_DRV_RUNNING)
re_txeof(sc);
if (status & RL_ISR_SYSTEM_ERR) {