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authorDing Hui <dinghui@sangfor.com.cn>2020-08-21 12:15:49 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-23 18:12:58 +0300
commitf1ec7ae6c9f8c016db320e204cb519a1da1581b8 (patch)
tree66ca96e28d1acc9cf1949f13b697836024a934a0 /net/unix/af_unix.c
parent904df64a5f4d5ebd670801d869ca0a6d6a6e8df6 (diff)
downloadlinux-f1ec7ae6c9f8c016db320e204cb519a1da1581b8.tar.xz
xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed
Some device drivers call libusb_clear_halt when target ep queue is not empty. (eg. spice client connected to qemu for usb redir) Before commit f5249461b504 ("xhci: Clear the host side toggle manually when endpoint is soft reset"), that works well. But now, we got the error log: EP not empty, refuse reset xhci_endpoint_reset failed and left ep_state's EP_SOFT_CLEAR_TOGGLE bit still set So all the subsequent urb sumbits to the ep will fail with the warn log: Can't enqueue URB while manually clearing toggle We need to clear ep_state EP_SOFT_CLEAR_TOGGLE bit after xhci_endpoint_reset, even if it failed. Fixes: f5249461b504 ("xhci: Clear the host side toggle manually when endpoint is soft reset") Cc: stable <stable@vger.kernel.org> # v4.17+ Signed-off-by: Ding Hui <dinghui@sangfor.com.cn> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200821091549.20556-4-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/unix/af_unix.c')
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