USB: fix the usb misc drivers due to interrupt urb no automatic resubmission...

USB: fix the usb misc drivers due to interrupt urb no automatic resubmission change to the usb core.

drivers/usb/misc/auerswald.c

@@ -1014,30 +1014,39 @@ static void auerswald_int_complete (struct urb * urb)
         pauerbuf_t   bp = NULL;
         pauerswald_t cp = (pauerswald_t) urb->context;
 
-        dbg ("auerswald_int_complete called");
+        dbg ("%s called", __FUNCTION__);
 
-        /* do not respond to an error condition */
-        if (urb->status != 0) {
-                dbg ("nonzero URB status = %d", urb->status);
-                return;
-        }
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
+	}
 
         /* check if all needed data was received */
 	if (urb->actual_length < AU_IRQMINSIZE) {
                 dbg ("invalid data length received: %d bytes", urb->actual_length);
-                return;
+		goto exit;
         }
 
         /* check the command code */
         if (cp->intbufp[0] != AU_IRQCMDID) {
                 dbg ("invalid command received: %d", cp->intbufp[0]);
-                return;
+		goto exit;
         }
 
         /* check the command type */
         if (cp->intbufp[1] != AU_BLOCKRDY) {
                 dbg ("invalid command type received: %d", cp->intbufp[1]);
-                return;
+		goto exit;
         }
 
         /* now extract the information */
@@ -1047,13 +1056,13 @@ static void auerswald_int_complete (struct urb * urb)
         /* check the channel id */
         if (channelid >= AUH_TYPESIZE) {
                 dbg ("invalid channel id received: %d", channelid);
-                return;
+		goto exit;
         }
 
         /* check the byte count */
         if (bytecount > (cp->maxControlLength+AUH_SIZE)) {
                 dbg ("invalid byte count received: %d", bytecount);
-                return;
+		goto exit;
         }
         dbg ("Service Channel = %d", channelid);
         dbg ("Byte Count = %d", bytecount);
@@ -1077,7 +1086,7 @@ static void auerswald_int_complete (struct urb * urb)
 		   The only real solution is: having enought buffers!
 		   Or perhaps temporary disabling the int endpoint?
 		*/
-		return;
+		goto exit;
         }
 
 	/* fill the control message */
@@ -1098,6 +1107,11 @@ static void auerswald_int_complete (struct urb * urb)
                 auerswald_ctrlread_complete( bp->urbp);
 		/* here applies the same problem as above: device locking! */
         }
+exit:
+	ret = usb_submit_urb (urb, GFP_ATOMIC);
+	if (ret)
+		err ("%s - usb_submit_urb failed with result %d",
+		     __FUNCTION__, ret);
 }
 
 /* int memory deallocation

drivers/usb/misc/brlvger.c

@@ -846,14 +846,21 @@ intr_callback(struct urb *urb)
 {
 	struct brlvger_priv *priv = urb->context;
 	int intr_idx, read_idx;
+	int status;
 
-	if( urb->status ) {
-		if(urb->status == -ETIMEDOUT)
-			dbg2("Status -ETIMEDOUT, "
-			     "probably disconnected");
-		else if(urb->status != -ENOENT)
-			err("Status: %d", urb->status);
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 		return;
+	default:
+		dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+		goto exit;
 	}
 
 	read_idx = atomic_read(&priv->read_idx);
@@ -862,7 +869,7 @@ intr_callback(struct urb *urb)
 	if(read_idx == intr_idx) {
 		dbg2("Queue full, dropping braille display input");
 		spin_unlock(&priv->intr_idx_lock);
-		return;	/* queue full */
+		goto exit;	/* queue full */
 	}
 
 	memcpy(priv->event_queue[intr_idx], urb->transfer_buffer,
@@ -873,6 +880,12 @@ intr_callback(struct urb *urb)
 	spin_unlock(&priv->intr_idx_lock);
 
 	wake_up_interruptible(&priv->read_wait);
+
+exit:
+	status = usb_submit_urb (urb, GFP_ATOMIC);
+	if (status)
+		err ("%s - usb_submit_urb failed with result %d",
+		     __FUNCTION__, status);
 }
 
 /* ----------------------------------------------------------------------- */