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* Simple cyberjack diff
@ 2002-02-26 22:16 Shane Nay
  2002-02-27  4:16 ` Greg KH
  0 siblings, 1 reply; 2+ messages in thread
From: Shane Nay @ 2002-02-26 22:16 UTC (permalink / raw)
  To: linux-kernel; +Cc: linux-usb

While looking around the usb code I noticed this semaphore problem in
cyberjack.  Anyway, it's a quicky.

Thanks,
Shane Nay.

--- virgin/linux/drivers/usb/serial/cyberjack.c Fri Dec 21 09:41:55 2001
+++ linux/drivers/usb/serial/cyberjack.c        Tue Feb 26 14:09:31 2002
@@ -238,7 +238,8 @@
        if( (count+priv->wrfilled)>sizeof(priv->wrbuf) ) {
                /* To much data  for buffer. Reset buffer. */
                priv->wrfilled=0;
-               return (0);
+               count=0;
+               goto exit;
        }
 
        /* Copy data */
@@ -299,7 +300,7 @@
                        priv->wrsent=0;
                }
        }
-
+exit:
        up (&port->sem);
        return (count);
 } 

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Simple cyberjack diff
  2002-02-26 22:16 Simple cyberjack diff Shane Nay
@ 2002-02-27  4:16 ` Greg KH
  0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2002-02-27  4:16 UTC (permalink / raw)
  To: Shane Nay; +Cc: linux-kernel, linux-usb

On Tue, Feb 26, 2002 at 02:16:35PM -0800, Shane Nay wrote:
> While looking around the usb code I noticed this semaphore problem in
> cyberjack.  Anyway, it's a quicky.

Good catch.  I'll add it to my 2.4 and 2.5 trees and push the changes
onward.

The same problem is also in the copy_from_user() test a few lines below
this one.  I'll fix it.

thanks again,

greg k-h

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2002-02-26 22:16 Simple cyberjack diff Shane Nay
2002-02-27  4:16 ` Greg KH

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