Re: [PATCH] netiucv: Hold rtnl between name allocation and device registration.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Benjamin Poirier <bpoirier@xxxxxxx>
Date: Thu, 13 Jun 2013 09:09:47 -0400

> fixes a race condition between concurrent initializations of netiucv devices
> that try to use the same name.
> 
> sysfs: cannot create duplicate filename '/devices/iucv/netiucv2'
> [...]
> Call Trace:
> ([<00000000002edea4>] sysfs_add_one+0xb0/0xdc)
>  [<00000000002eecd4>] create_dir+0x80/0xfc
>  [<00000000002eee38>] sysfs_create_dir+0xe8/0x118
>  [<00000000003835a8>] kobject_add_internal+0x120/0x2d0
>  [<00000000003839d6>] kobject_add+0x62/0x9c
>  [<00000000003d9564>] device_add+0xcc/0x510
>  [<000003e00212c7b4>] netiucv_register_device+0xc0/0x1ec [netiucv]
> 
> Signed-off-by: Benjamin Poirier <bpoirier@xxxxxxx>
> Tested-by: Ursula Braun <braunu@xxxxxxxxxx>

Yes as dev_alloc_name() must be invoked under RTNL or dev_base_lock, this
fix is correct.

Applied, thanks.
--
To unsubscribe from this list: send the line "unsubscribe linux-s390" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Kernel Development]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Info]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Linux Media]     [Device Mapper]

  Powered by Linux