From: Jean Tourrilhes <[EMAIL PROTECTED]>

Acked-by: "David S. Miller" <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---

 25-akpm/net/irda/irda_device.c |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff -puN net/irda/irda_device.c~irda_device-oops-fix net/irda/irda_device.c
--- 25/net/irda/irda_device.c~irda_device-oops-fix      2005-04-12 
03:21:08.744807488 -0700
+++ 25-akpm/net/irda/irda_device.c      2005-04-12 03:21:08.747807032 -0700
@@ -125,8 +125,15 @@ void irda_device_set_media_busy(struct n
 
        self = (struct irlap_cb *) dev->atalk_ptr;
 
-       IRDA_ASSERT(self != NULL, return;);
-       IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
+       /* Some drivers may enable the receive interrupt before calling
+        * irlap_open(), or they may disable the receive interrupt
+        * after calling irlap_close().
+        * The IrDA stack is protected from this in irlap_driver_rcv().
+        * However, the driver calls directly the wrapper, that calls
+        * us directly. Make sure we protect ourselves.
+        * Jean II */
+       if (!self || self->magic != LAP_MAGIC)
+               return;
 
        if (status) {
                self->media_busy = TRUE;
_
-
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