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authorGreg Kroah-Hartman2019-01-28 08:44:58 +0100
committerGreg Kroah-Hartman2019-01-28 08:44:58 +0100
commitc9381e185fdcf86e9d7966d638c933894f87cdd7 (patch)
treed99259aded85a3fb95e9d52c56d9d3a0cfdfe460 /drivers/xen/pvcalls-back.c
parentusb: ftdi-elan: Fix if == else warnings in ftdi_elan_respond_engine (diff)
parentLinux 5.0-rc4 (diff)
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Merge 5.0-rc4 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/xen/pvcalls-back.c')
-rw-r--r--drivers/xen/pvcalls-back.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index 2e5d845b5091..7aa64d1b119c 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -160,9 +160,10 @@ static void pvcalls_conn_back_read(void *opaque)
/* write the data, then modify the indexes */
virt_wmb();
- if (ret < 0)
+ if (ret < 0) {
+ atomic_set(&map->read, 0);
intf->in_error = ret;
- else
+ } else
intf->in_prod = prod + ret;
/* update the indexes, then notify the other end */
virt_wmb();
@@ -282,13 +283,11 @@ static int pvcalls_back_socket(struct xenbus_device *dev,
static void pvcalls_sk_state_change(struct sock *sock)
{
struct sock_mapping *map = sock->sk_user_data;
- struct pvcalls_data_intf *intf;
if (map == NULL)
return;
- intf = map->ring;
- intf->in_error = -ENOTCONN;
+ atomic_inc(&map->read);
notify_remote_via_irq(map->irq);
}