usb: check return value of submit_{control, bulk}_msg
Return values of submit_{control,bulk}_msg() functions
should be checked to detect possible error.
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
diff --git a/common/usb.c b/common/usb.c
index 46f4741..1b40228 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -188,7 +188,8 @@
request, requesttype, value, index, size);
dev->status = USB_ST_NOT_PROC; /*not yet processed */
- submit_control_msg(dev, pipe, data, size, setup_packet);
+ if (submit_control_msg(dev, pipe, data, size, setup_packet) < 0)
+ return -1;
if (timeout == 0)
return (int)size;
@@ -220,7 +221,8 @@
if (len < 0)
return -1;
dev->status = USB_ST_NOT_PROC; /*not yet processed */
- submit_bulk_msg(dev, pipe, data, len);
+ if (submit_bulk_msg(dev, pipe, data, len) < 0)
+ return -1;
while (timeout--) {
if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
break;