From: Dan Carpenter <dan.carpenter@oracle.com>
To: walter harms <wharms@bfs.de>
Cc: Boaz Harrosh <bharrosh@panasas.com>,
Benny Halevy <bhalevy@tonian.com>,
"James E.J. Bottomley" <JBottomley@parallels.com>,
osd-dev@open-osd.org, linux-scsi@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: Re: [patch] [SCSI] libosd: check for kzalloc() failure
Date: Wed, 30 Jan 2013 08:27:41 +0000 [thread overview]
Message-ID: <20130130082741.GT16282@mwanda> (raw)
In-Reply-To: <5108D6AF.5040205@bfs.de>
On Wed, Jan 30, 2013 at 09:15:43AM +0100, walter harms wrote:
>
>
> Am 30.01.2013 08:06, schrieb Dan Carpenter:
> > There wasn't any error handling for this kzalloc().
> >
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> > diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
> > index c06b8e5..d8293f2 100644
> > --- a/drivers/scsi/osd/osd_initiator.c
> > +++ b/drivers/scsi/osd/osd_initiator.c
> > @@ -144,6 +144,10 @@ static int _osd_get_print_system_info(struct osd_dev *od,
> > odi->osdname_len = get_attrs[a].len;
> > /* Avoid NULL for memcmp optimization 0-length is good enough */
> > odi->osdname = kzalloc(odi->osdname_len + 1, GFP_KERNEL);
> > + if (!odi->osdname) {
> > + ret = -ENOMEM;
> > + goto out;
> > + }
> > if (odi->osdname_len)
> > memcpy(odi->osdname, get_attrs[a].val_ptr, odi->osdname_len);
> > OSD_INFO("OSD_NAME [%s]\n", odi->osdname);
> > --
>
> this looks like strdup() ?
>
Maybe? It's a funny thing going on with the NUL terminator and I
don't understand what the comment is about.
It appears that normally "get_attrs[a].val_ptr" is a NUL terminated
string but "get_attrs[a].len" does not count the terminator.
Odd.
regards,
dan carpenter
next prev parent reply other threads:[~2013-01-30 8:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-30 7:06 [patch] [SCSI] libosd: check for kzalloc() failure Dan Carpenter
2013-01-30 8:15 ` walter harms
2013-01-30 8:27 ` Dan Carpenter [this message]
2013-01-30 8:57 ` walter harms
2013-01-30 9:51 ` Benny Halevy
2013-01-30 13:00 ` walter harms
2013-01-30 13:40 ` Benny Halevy
2013-01-30 14:34 ` walter harms
2013-01-30 15:51 ` Boaz Harrosh
2013-01-30 10:05 ` Benny Halevy
2013-01-30 15:56 ` Boaz Harrosh
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