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authorThomas Gleixner <tglx@linutronix.de>2016-09-26 15:47:03 -0400
committerThomas Gleixner <tglx@linutronix.de>2016-09-26 15:47:03 -0400
commit1e1b37273cf719545da50b76f214f983a710aaf4 (patch)
tree033f6062325ef7aaeefe8559bb409ab7d2be3c76 /drivers/usb/core/devio.c
parentc183a603e8d8a5a189729b77d0c623a3d5950e5f (diff)
parentc291b015158577be533dd5a959dfc09bab119eed (diff)
Merge branch 'x86/urgent' into x86/apic
Bring in the upstream modifications so we can fixup the silent merge conflict which is introduced by this merge. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/usb/core/devio.c')
-rw-r--r--drivers/usb/core/devio.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index e9f5043a2167..09c8d9ca61ae 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -241,7 +241,8 @@ static int usbdev_mmap(struct file *file, struct vm_area_struct *vma)
goto error_decrease_mem;
}
- mem = usb_alloc_coherent(ps->dev, size, GFP_USER, &dma_handle);
+ mem = usb_alloc_coherent(ps->dev, size, GFP_USER | __GFP_NOWARN,
+ &dma_handle);
if (!mem) {
ret = -ENOMEM;
goto error_free_usbm;
@@ -1708,11 +1709,17 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
as->urb->start_frame = uurb->start_frame;
as->urb->number_of_packets = number_of_packets;
as->urb->stream_id = stream_id;
- if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
- ps->dev->speed == USB_SPEED_HIGH)
- as->urb->interval = 1 << min(15, ep->desc.bInterval - 1);
- else
- as->urb->interval = ep->desc.bInterval;
+
+ if (ep->desc.bInterval) {
+ if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
+ ps->dev->speed == USB_SPEED_HIGH ||
+ ps->dev->speed >= USB_SPEED_SUPER)
+ as->urb->interval = 1 <<
+ min(15, ep->desc.bInterval - 1);
+ else
+ as->urb->interval = ep->desc.bInterval;
+ }
+
as->urb->context = as;
as->urb->complete = async_completed;
for (totlen = u = 0; u < number_of_packets; u++) {
@@ -2582,7 +2589,9 @@ static unsigned int usbdev_poll(struct file *file,
if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed))
mask |= POLLOUT | POLLWRNORM;
if (!connected(ps))
- mask |= POLLERR | POLLHUP;
+ mask |= POLLHUP;
+ if (list_empty(&ps->list))
+ mask |= POLLERR;
return mask;
}