Re: [PATCH 2/3] xhci: Fix race related to abort operation

Felipe Balbi writes: > Hi, Hi, > OGAWA Hirofumi writes: >> diff -puN drivers/usb/host/xhci-ring.c~xhci-fix-abort-race2 >> drivers/usb/host/xhci-ring.c >> --- xhci/drivers/usb/host/xhci-ring.c~xhci-fix-abort-race2 2016-11-16 >>

Re: [PATCH 2/3] xhci: Fix race related to abort operation

Hi, OGAWA Hirofumi writes: > diff -puN drivers/usb/host/xhci-ring.c~xhci-fix-abort-race2 > drivers/usb/host/xhci-ring.c > --- xhci/drivers/usb/host/xhci-ring.c~xhci-fix-abort-race22016-11-16 > 13:36:07.219329211 +0900 > +++

[PATCH 2/3] xhci: Fix race related to abort operation

Current abort operation has race. xhci_handle_command_timeout() xhci_abort_cmd_ring() xhci_write_64(CMD_RING_ABORT) xhci_handshake(5s) do { check CMD_RING_RUNNING udelay(1) ...