From 72df4a55e9ab955d2143e638d9b24343e7658d6f Mon Sep 17 00:00:00 2001 From: Christian Gromm Date: Fri, 19 Aug 2016 11:12:48 +0200 Subject: [PATCH] staging: most: hdm-usb: stop core from submitting buffers in case of broken pipe This patch ensures that no more packets are submitted by the core in case an USB endpoint has reported a broken pipe (-EPIPE). Signed-off-by: Andrey Shvetsov Signed-off-by: Christian Gromm Signed-off-by: Greg Kroah-Hartman --- drivers/staging/most/hdm-usb/hdm_usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/hdm-usb/hdm_usb.c index 8f1c09670dfb..03cdd0d1283d 100644 --- a/drivers/staging/most/hdm-usb/hdm_usb.c +++ b/drivers/staging/most/hdm-usb/hdm_usb.c @@ -580,6 +580,7 @@ static void hdm_read_completion(struct urb *urb) switch (urb->status) { case -EPIPE: dev_warn(dev, "Broken IN pipe detected\n"); + most_stop_enqueue(&mdev->iface, channel); mbo->status = MBO_E_INVAL; mdev->clear_work[channel].pipe = urb->pipe; schedule_work(&mdev->clear_work[channel].ws); @@ -936,8 +937,7 @@ static void wq_clear_halt(struct work_struct *wq_obj) if (usb_clear_halt(mdev->usb_device, pipe)) dev_warn(&mdev->usb_device->dev, "Failed to reset endpoint.\n"); - if (mdev->conf[channel].direction & MOST_CH_TX) - most_resume_enqueue(&mdev->iface, channel); + most_resume_enqueue(&mdev->iface, channel); mutex_unlock(&mdev->io_mutex); }