From 323ece54e0761198946ecd0c2091f1d2bfdfcb64 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Fri, 20 Mar 2015 14:29:34 +0100 Subject: [PATCH] cdc-wdm: fix endianness bug in debug statements Values directly from descriptors given in debug statements must be converted to native endianness. Signed-off-by: Oliver Neukum CC: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-wdm.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index cdc93d066991..8e32b8d8115e 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -245,7 +245,7 @@ static void wdm_int_callback(struct urb *urb) case USB_CDC_NOTIFY_RESPONSE_AVAILABLE: dev_dbg(&desc->intf->dev, "NOTIFY_RESPONSE_AVAILABLE received: index %d len %d", - dr->wIndex, dr->wLength); + le16_to_cpu(dr->wIndex), le16_to_cpu(dr->wLength)); break; case USB_CDC_NOTIFY_NETWORK_CONNECTION: @@ -262,7 +262,9 @@ static void wdm_int_callback(struct urb *urb) clear_bit(WDM_POLL_RUNNING, &desc->flags); dev_err(&desc->intf->dev, "unknown notification %d received: index %d len %d\n", - dr->bNotificationType, dr->wIndex, dr->wLength); + dr->bNotificationType, + le16_to_cpu(dr->wIndex), + le16_to_cpu(dr->wLength)); goto exit; } @@ -402,7 +404,7 @@ static ssize_t wdm_write USB_RECIP_INTERFACE); req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND; req->wValue = 0; - req->wIndex = desc->inum; + req->wIndex = desc->inum; /* already converted */ req->wLength = cpu_to_le16(count); set_bit(WDM_IN_USE, &desc->flags); desc->outbuf = buf; @@ -416,7 +418,7 @@ static ssize_t wdm_write goto out_free_mem_pm; } else { dev_dbg(&desc->intf->dev, "Tx URB has been submitted index=%d", - req->wIndex); + le16_to_cpu(req->wIndex)); } usb_autopm_put_interface(desc->intf); @@ -821,7 +823,7 @@ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor desc->irq->bRequestType = (USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE); desc->irq->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE; desc->irq->wValue = 0; - desc->irq->wIndex = desc->inum; + desc->irq->wIndex = desc->inum; /* already converted */ desc->irq->wLength = cpu_to_le16(desc->wMaxCommand); usb_fill_control_urb( -- 2.30.2