drivers: usb: uhc: mcux: add data to buf only for IN transfer

After the transfer callback, add the received data to buf only for IN.

Signed-off-by: Mark Wang <[email protected]>

Author: MarkWangChinese

drivers/usb/uhc/uhc_mcux_ehci.c

@@ -168,13 +168,12 @@ static void uhc_mcux_transfer_callback(void *param, usb_host_transfer_t *transfe
 		uhc_mcux_nocache_free(transfer->setupPacket);
 	}
 #endif
-	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL)) {
-		if (transfer->transferSofar > 0) {
+	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL) &&
+	    USB_EP_DIR_IS_IN(xfer->ep) && (transfer->transferSofar > 0)) {
 #if defined(CONFIG_NOCACHE_MEMORY)
-			memcpy(xfer->buf->__buf, transfer->transferBuffer, transfer->transferSofar);
+		memcpy(xfer->buf->__buf, transfer->transferBuffer, transfer->transferSofar);
 #endif
-			net_buf_add(xfer->buf, transfer->transferSofar);
-		}
+		net_buf_add(xfer->buf, transfer->transferSofar);
 #if defined(CONFIG_NOCACHE_MEMORY)
 		uhc_mcux_nocache_free(transfer->transferBuffer);
 #endif

drivers/usb/uhc/uhc_mcux_ip3516hs.c

@@ -138,10 +138,9 @@ static void uhc_mcux_transfer_callback(void *param, usb_host_transfer_t *transfe
 		}
 	}
 
-	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL)) {
-		if (transfer->transferSofar > 0) {
-			net_buf_add(xfer->buf, transfer->transferSofar);
-		}
+	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL) &&
+	    USB_EP_DIR_IS_IN(xfer->ep) && (transfer->transferSofar > 0)) {
+		net_buf_add(xfer->buf, transfer->transferSofar);
 	}
 
 	transfer->setupPacket = NULL;

drivers/usb/uhc/uhc_mcux_khci.c

@@ -124,10 +124,9 @@ static void uhc_mcux_transfer_callback(void *param, usb_host_transfer_t *transfe
 		}
 	}
 
-	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL)) {
-		if (transfer->transferSofar > 0) {
-			net_buf_add(xfer->buf, transfer->transferSofar);
-		}
+	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL) &&
+	    USB_EP_DIR_IS_IN(xfer->ep) && (transfer->transferSofar > 0)) {
+		net_buf_add(xfer->buf, transfer->transferSofar);
 	}
 
 	transfer->setupPacket = NULL;

drivers/usb/uhc/uhc_mcux_ohci.c

@@ -124,10 +124,9 @@ static void uhc_mcux_transfer_callback(void *param, usb_host_transfer_t *transfe
 		}
 	}
 
-	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL)) {
-		if (transfer->transferSofar > 0) {
-			net_buf_add(xfer->buf, transfer->transferSofar);
-		}
+	if ((xfer->buf != NULL) && (transfer->transferBuffer != NULL) &&
+	    USB_EP_DIR_IS_IN(xfer->ep) && (transfer->transferSofar > 0)) {
+		net_buf_add(xfer->buf, transfer->transferSofar);
 	}
 
 	transfer->setupPacket = NULL;