RE: [PATCH 1/1] hv: Use only one receive buffer per channel and kmalloc on initialize

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

 



On Mon, 13 Dec 2010, Hank Janssen wrote:

> 
> 
> > -----Original Message-----
> > From: Jesper Juhl [mailto:jj@xxxxxxxxxxxxx]
> > Sent: Monday, December 13, 2010 12:48 PM
> > You are leaking memory in the failure path. If for example one or two
> > allocations succeed but one or two fail, then you'll leak the two successful
> > allocations.
> > 
> > I believe this should be
> > 
> >      if (!shut_txf_buf || !time_txf_buf || !hbeat_txf_buf) {
> >              printk(KERN_INFO
> >                     "Unable to allocate memory for receive buffer\n");
> >              kfree(hbeat_txf_buf);
> >              kfree(time_txf_buf);
> >              kfree(shut_txf_buf);
> >              return -ENOMEM;
> > ...
> > 
>  
> Oops, you are correct. Resubmitting the patch in a few minutes.
> 
Ohh and another little detail; shouldn't this log message be a 
KERN_WARNING level message?
And perhaps the log text should include "HyperV" or something so it's 
clear where it comes from..?

-- 
Jesper Juhl <jj@xxxxxxxxxxxxx>            http://www.chaosbits.net/
Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please.

_______________________________________________
Virtualization mailing list
Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/virtualization


[Index of Archives]     [KVM Development]     [Libvirt Development]     [Libvirt Users]     [CentOS Virtualization]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux