Re: [linux-usb-devel] Re: USBDEVFS_RESET deadlocks USB bus.

[Duncan Sands]

> c4bae310 Call Trace:
>  [<c0336735>] __down+0x85/0x120
>  [<c033692f>] __down_failed+0xb/0x14
>  [<c026af27>] .text.lock.hub+0x69/0x82
>  [<c0272b7f>] usbdev_ioctl+0x19f/0x710
>  [<c015a45d>] file_ioctl+0x5d/0x170
>  [<c015a686>] sys_ioctl+0x116/0x250
>  [<c0103f8f>] syscall_call+0x7/0xb

Does this help?

Ciao,

Duncan.

--- linux-2.5/drivers/usb/core/devio.c.orig	2004-06-04 22:29:28.000000000 +0200
+++ linux-2.5/drivers/usb/core/devio.c	2004-06-04 22:40:22.000000000 +0200
@@ -50,6 +50,8 @@
 #include "hcd.h"	/* for usbcore internals */
 #include "usb.h"
 
+extern int __usb_reset_device(struct usb_device *udev);
+
 struct async {
 	struct list_head asynclist;
 	struct dev_state *ps;
@@ -719,7 +721,7 @@
 
 static int proc_resetdevice(struct dev_state *ps)
 {
-	return usb_reset_device(ps->dev);
+	return __usb_reset_device(ps->dev);
 
 }
 

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/