USB: serial: fix up urb->status usage
Some of the usb-serial drivers are starting to use urb->status in ways
they should not be doing. This fixes up some of them to prevent that.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index e320972..2314c6a 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -190,10 +190,12 @@
{
struct usb_serial_port *port = urb->context;
int result;
+ int status = urb->status;
+
dbg("%s - enter", __func__);
- if (urb->status) {
- dbg("%s - urb->status = %d", __func__, urb->status);
+ if (status) {
+ dbg("%s - status = %d", __func__, status);
/* error stop all */
return;
}
@@ -245,10 +247,12 @@
struct usb_serial_port *port = urb->context;
struct iuu_private *priv = usb_get_serial_port_data(port);
u8 *st;
+ int status = urb->status;
+
dbg("%s - enter", __func__);
- if (urb->status) {
- dbg("%s - urb->status = %d", __func__, urb->status);
+ if (status) {
+ dbg("%s - status = %d", __func__, status);
/* error stop all */
return;
}
@@ -274,9 +278,9 @@
{
struct usb_serial_port *port = urb->context;
int result;
- dbg("%s - enter", __func__);
+ int status = urb->status;
- dbg("%s - urb->status = %d", __func__, urb->status);
+ dbg("%s - status = %d", __func__, status);
usb_fill_bulk_urb(port->read_urb, port->serial->dev,
usb_rcvbulkpipe(port->serial->dev,
port->bulk_in_endpointAddress),
@@ -618,11 +622,12 @@
struct usb_serial_port *port = urb->context;
unsigned char *data = urb->transfer_buffer;
struct tty_struct *tty;
- dbg("%s - urb->status = %d", __func__, urb->status);
+ int status = urb->status;
- if (urb->status) {
- dbg("%s - urb->status = %d", __func__, urb->status);
- if (urb->status == -EPROTO) {
+ dbg("%s - status = %d", __func__, status);
+
+ if (status) {
+ if (status == -EPROTO) {
/* reschedule needed */
}
return;
@@ -695,7 +700,7 @@
struct usb_serial_port *port = urb->context;
struct iuu_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
- int status;
+ int status = urb->status;
int error = 0;
int len = 0;
unsigned char *data = urb->transfer_buffer;
@@ -703,8 +708,8 @@
dbg("%s - enter", __func__);
- if (urb->status) {
- dbg("%s - urb->status = %d", __func__, urb->status);
+ if (status) {
+ dbg("%s - status = %d", __func__, status);
/* error stop all */
return;
}
@@ -782,12 +787,11 @@
{
struct usb_serial_port *port = urb->context;
int result;
- dbg("%s - enter", __func__);
+ int status = urb->status;
- dbg("%s - urb->status = %d", __func__, urb->status);
+ dbg("%s - status = %d", __func__, status);
- if (urb->status) {
- dbg("%s - urb->status = %d", __func__, urb->status);
+ if (status) {
/* error stop all */
return;
}