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 46f47416904afaec76859dcc44c9b8b661116523..1b40228b28836697b5cb4715dd269a21c995ac3e 100644 (file)
--- a/common/usb.c
+++ b/common/usb.c
@@ -188,7 +188,8 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
                   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 @@ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
        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;