[PATCH] USB speedtouch: be firm when disconnected

From: Duncan Sands (baldrick@wanadoo.fr)
Date: Fri Feb 28 2003 - 04:15:37 EST


Just say -ENODEV

 speedtouch.c | 11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diff -Nru a/drivers/usb/misc/speedtouch.c b/drivers/usb/misc/speedtouch.c
--- a/drivers/usb/misc/speedtouch.c Fri Feb 28 10:09:04 2003
+++ b/drivers/usb/misc/speedtouch.c Fri Feb 28 10:09:04 2003
@@ -648,9 +648,9 @@
 
         dbg ("udsl_atm_send called (skb 0x%p, len %u)", skb, skb->len);
 
- if (!instance) {
- dbg ("NULL instance!");
- return -EINVAL;
+ if (!instance || !instance->usb_dev) {
+ dbg ("NULL data!");
+ return -ENODEV;
         }
 
         if (!instance->firmware_loaded)
@@ -701,6 +701,7 @@
         tasklet_kill (&instance->send_tasklet);
         dbg ("udsl_atm_dev_close: freeing instance");
         kfree (instance);
+ dev->dev_data = NULL;
 }
 
 
@@ -776,8 +777,8 @@
 
         dbg ("udsl_atm_open called");
 
- if (!instance) {
- dbg ("NULL instance!");
+ if (!instance || !instance->usb_dev) {
+ dbg ("NULL data!");
                 return -ENODEV;
         }
 

-
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