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authorArtem B. Bityuckiy <dedekind@infradead.org>2005-07-06 10:43:18 -0400
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-07-06 13:40:38 -0400
commitb3539219c9ea20ebf6a5ea3cc534f423a3607c41 (patch)
treed17c31c0eac0a7290ba5011b59a100fd9e9c9532 /drivers/usb/serial/cyberjack.c
parent6430a8def12edebc1c9c7c2621d33ca0e8653c33 (diff)
parenta18bcb7450840f07a772a45229de4811d930f461 (diff)
Merge with rsync://fileserver/linux
Update to 2.6.12-rc3
Diffstat (limited to 'drivers/usb/serial/cyberjack.c')
-rw-r--r--drivers/usb/serial/cyberjack.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 46a204cd40e1..b5b431067b08 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -213,10 +213,14 @@ static int cyberjack_write (struct usb_serial_port *port, const unsigned char *b
213 return (0); 213 return (0);
214 } 214 }
215 215
216 if (port->write_urb->status == -EINPROGRESS) { 216 spin_lock(&port->lock);
217 if (port->write_urb_busy) {
218 spin_unlock(&port->lock);
217 dbg("%s - already writing", __FUNCTION__); 219 dbg("%s - already writing", __FUNCTION__);
218 return (0); 220 return 0;
219 } 221 }
222 port->write_urb_busy = 1;
223 spin_unlock(&port->lock);
220 224
221 spin_lock_irqsave(&priv->lock, flags); 225 spin_lock_irqsave(&priv->lock, flags);
222 226
@@ -224,6 +228,7 @@ static int cyberjack_write (struct usb_serial_port *port, const unsigned char *b
224 /* To much data for buffer. Reset buffer. */ 228 /* To much data for buffer. Reset buffer. */
225 priv->wrfilled=0; 229 priv->wrfilled=0;
226 spin_unlock_irqrestore(&priv->lock, flags); 230 spin_unlock_irqrestore(&priv->lock, flags);
231 port->write_urb_busy = 0;
227 return (0); 232 return (0);
228 } 233 }
229 234
@@ -268,6 +273,7 @@ static int cyberjack_write (struct usb_serial_port *port, const unsigned char *b
268 priv->wrfilled=0; 273 priv->wrfilled=0;
269 priv->wrsent=0; 274 priv->wrsent=0;
270 spin_unlock_irqrestore(&priv->lock, flags); 275 spin_unlock_irqrestore(&priv->lock, flags);
276 port->write_urb_busy = 0;
271 return 0; 277 return 0;
272 } 278 }
273 279
@@ -412,7 +418,8 @@ static void cyberjack_write_bulk_callback (struct urb *urb, struct pt_regs *regs
412 struct cyberjack_private *priv = usb_get_serial_port_data(port); 418 struct cyberjack_private *priv = usb_get_serial_port_data(port);
413 419
414 dbg("%s - port %d", __FUNCTION__, port->number); 420 dbg("%s - port %d", __FUNCTION__, port->number);
415 421
422 port->write_urb_busy = 0;
416 if (urb->status) { 423 if (urb->status) {
417 dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); 424 dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status);
418 return; 425 return;
@@ -424,12 +431,6 @@ static void cyberjack_write_bulk_callback (struct urb *urb, struct pt_regs *regs
424 if( priv->wrfilled ) { 431 if( priv->wrfilled ) {
425 int length, blksize, result; 432 int length, blksize, result;
426 433
427 if (port->write_urb->status == -EINPROGRESS) {
428 dbg("%s - already writing", __FUNCTION__);
429 spin_unlock(&priv->lock);
430 return;
431 }
432
433 dbg("%s - transmitting data (frame n)", __FUNCTION__); 434 dbg("%s - transmitting data (frame n)", __FUNCTION__);
434 435
435 length = ((priv->wrfilled - priv->wrsent) > port->bulk_out_size) ? 436 length = ((priv->wrfilled - priv->wrsent) > port->bulk_out_size) ?