Re: [OOPS] on usb removal, and minicom closing 2.6.11.7

[Grzegorz Piotr Jaskiewicz <gj@pointblue.com.pl>]

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Works great, I would like to ask everyone here on lkml to consider
adding this patch to mainline.
This ain't naughty solution, checking for object/pointer/whatever if
exists before doing anything with it, is good.

Anyone?

Buy the way, I am also looking for usblan for 2.6, can I use usbnet
instead ? Anyone ported usblan to 2.6 (it's on GPL).

JustMan wrote:
>>So,
>>
>>I plugged in e680 motorola phone, played a bit with minicom on
>>/dev/ttyACM0, and when I closed minicom, got this oops. USB is useless,
>>got to reboot computer to use it again!
>>it's vanilla 2.6.11.7
>>
>>oops attached.
>>
> 
> 
> Try attached patch... (nasty solution, but it work for my C350  motorola phone)
> 
> 
>>
> 
> 
> ------------------------------------------------------------------------
> 
> diff -uNrp linux/drivers/base/class.orig.c  linux/drivers/base/class.c
> --- linux/drivers/base/class.orig.c	2005-03-10 12:19:00.000000000 +0300
> +++ linux/drivers/base/class.c	2005-03-10 13:59:27.000000000 +0300
> @@ -307,12 +307,14 @@ static int class_hotplug(struct kset *ks
>  	if (class_dev->dev) {
>  		/* add physical device, backing this device  */
>  		struct device *dev = class_dev->dev;
> -		char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
>  
> -		add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size,
> -				    &length, "PHYSDEVPATH=%s", path);
> -		kfree(path);
> +		if(kobject_name(&dev->kobj)) {
> +			char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
>  
> +			add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size,
> +				    &length, "PHYSDEVPATH=%s", path);
> +			kfree(path);
> +		}
>  		/* add bus name of physical device */
>  		if (dev->bus)
>  			add_hotplug_env_var(envp, num_envp, &i,

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