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| author | Dave Airlie <airlied@redhat.com> | 2016-04-22 00:32:51 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-04-22 00:32:51 +0200 |
| commit | 49047962ecf02d76bdaa378c00a51c9b829ac195 (patch) | |
| tree | 4e711bead6598486b033c4d2dbdb7f7c0dd6f23a /drivers/usb/serial/digi_acceleport.c | |
| parent | Merge tag 'topic/drm-misc-2016-04-21' of git://anongit.freedesktop.org/drm-in... (diff) | |
| parent | Linux 4.6-rc3 (diff) | |
| download | linux-49047962ecf02d76bdaa378c00a51c9b829ac195.tar.xz linux-49047962ecf02d76bdaa378c00a51c9b829ac195.zip | |
Merge tag 'v4.6-rc3' into drm-next
Backmerge 4.6-rc3 for i915.
Linux 4.6-rc3
Diffstat (limited to 'drivers/usb/serial/digi_acceleport.c')
| -rw-r--r-- | drivers/usb/serial/digi_acceleport.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 010a42a92688..16e8e37b3b36 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -1251,8 +1251,27 @@ static int digi_port_init(struct usb_serial_port *port, unsigned port_num) static int digi_startup(struct usb_serial *serial) { + struct device *dev = &serial->interface->dev; struct digi_serial *serial_priv; int ret; + int i; + + /* check whether the device has the expected number of endpoints */ + if (serial->num_port_pointers < serial->type->num_ports + 1) { + dev_err(dev, "OOB endpoints missing\n"); + return -ENODEV; + } + + for (i = 0; i < serial->type->num_ports + 1 ; i++) { + if (!serial->port[i]->read_urb) { + dev_err(dev, "bulk-in endpoint missing\n"); + return -ENODEV; + } + if (!serial->port[i]->write_urb) { + dev_err(dev, "bulk-out endpoint missing\n"); + return -ENODEV; + } + } serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL); if (!serial_priv) |