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usbehci: catch interrupt in tsleep

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This commit is contained in:
aiju 2018-03-07 08:45:06 +00:00
parent 9226caf2a3
commit 56405e0919
1 changed files with 4 additions and 1 deletions
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5
sys/src/9/port/usbehci.c
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@ -3063,7 +3063,10 @@ cancelisoio(Ctlr *ctlr, Isoio *iso, ulong load)
*/
wakeup(iso);
diprint("cancelisoio iso %#p waiting for I/O to cease\n", iso);
tsleep(&up->sleep, return0, 0, 5);
if(!waserror()){
tsleep(&up->sleep, return0, 0, 5);
poperror();
}
qlock(iso);
qunlock(iso);
diprint("cancelisoio iso %#p releasing iso\n", iso);