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Because ti(4) drops a driver lock in RX handler, check whether

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driver is still running before re-enabling interrupts.
This commit is contained in:
Pyun YongHyeon 2011-11-04 23:09:57 +00:00
parent 85d21e66be
commit 9c6960c61c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=227098
1 changed files with 4 additions and 4 deletions
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8
sys/dev/ti/if_ti.c
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@ -2856,12 +2856,12 @@ ti_intr(void *xsc)
ti_handle_events(sc);
/* Re-enable interrupts. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
ifp->if_snd.ifq_head != NULL)
ifp->if_snd.ifq_head != NULL) {
/* Re-enable interrupts. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
ti_start_locked(ifp);
}
TI_UNLOCK(sc);
}