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path: root/drivers/media/usb/siano/smsusb.c
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Diffstat (limited to 'drivers/media/usb/siano/smsusb.c')
-rw-r--r--drivers/media/usb/siano/smsusb.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index 59b3c124b49d..e39f3f40dfdd 100644
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -400,7 +400,7 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id)
struct smsusb_device_t *dev;
void *mdev;
int i, rc;
- int in_maxp = 0;
+ int align = 0;
/* create device object */
dev = kzalloc(sizeof(struct smsusb_device_t), GFP_KERNEL);
@@ -418,14 +418,14 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id)
if (desc->bEndpointAddress & USB_DIR_IN) {
dev->in_ep = desc->bEndpointAddress;
- in_maxp = usb_endpoint_maxp(desc);
+ align = usb_endpoint_maxp(desc) - sizeof(struct sms_msg_hdr);
} else {
dev->out_ep = desc->bEndpointAddress;
}
}
pr_debug("in_ep = %02x, out_ep = %02x\n", dev->in_ep, dev->out_ep);
- if (!dev->in_ep || !dev->out_ep) { /* Missing endpoints? */
+ if (!dev->in_ep || !dev->out_ep || align < 0) { /* Missing endpoints? */
smsusb_term_device(intf);
return -ENODEV;
}
@@ -444,7 +444,7 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id)
/* fall-thru */
default:
dev->buffer_size = USB2_BUFFER_SIZE;
- dev->response_alignment = in_maxp - sizeof(struct sms_msg_hdr);
+ dev->response_alignment = align;
params.flags |= SMS_DEVICE_FAMILY2;
break;