Subject: [PATCH 001/008] USB: serial: adding sierra_release_urb() function
From: Elina Pasheva <epasheva@xxxxxxxxxxxxxxxxxx>
The following is summary of changes we have made to sierra.c driver in
[PATCH 001/008] from the series dealing with improving urb handling:
- Added function sierra_release_urb() to free an urb and its transfer buffer.
This function is to be called by sierra_close() in subsequent patch.
- Version number set to 1.3.8
- Removed unecessary include file reference and comment
Signed-off-by: Elina Pasheva <epasheva@xxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/sierra.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
--- a/drivers/usb/serial/sierra.c 2009-05-04 14:07:33.000000000 -0700
+++ b/drivers/usb/serial/sierra.c 2009-05-04 17:20:29.000000000 -0700
@@ -17,7 +17,7 @@
Whom based his on the Keyspan driver by Hugh Blemings <hugh@xxxxxxxxxxxx>
*/
-#define DRIVER_VERSION "v.1.3.7"
+#define DRIVER_VERSION "v.1.3.8"
#define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer"
#define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
@@ -29,12 +29,10 @@
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
-#include <linux/usb/ch9.h>
#define SWIMS_USB_REQUEST_SetPower 0x00
#define SWIMS_USB_REQUEST_SetNmea 0x07
-/* per port private data */
#define N_IN_URB 8
#define N_OUT_URB 64
#define IN_BUFLEN 4096
@@ -248,7 +246,6 @@ static struct usb_driver sierra_driver =
.id_table = id_table,
.no_dynamic_id = 1,
};
-
struct sierra_port_private {
spinlock_t lock; /* lock the structure */
int outstanding_urbs; /* number of out urbs in flight */
@@ -364,6 +361,17 @@ static int sierra_tiocmset(struct tty_st
return sierra_send_setup(port);
}
+static void sierra_release_urb(struct urb *urb)
+{
+ struct usb_serial_port *port;
+ if (urb) {
+ port = urb->context;
+ dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+ }
+}
+
static void sierra_outdat_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
--
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