lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 08 Aug 2014 16:38:21 +0200 From: walter harms <wharms@....de> To: Julia Lawall <Julia.Lawall@...6.fr> CC: Adaptec OEM Raid Solutions <aacraid@...ptec.com>, kernel-janitors@...r.kernel.org, "James E.J. Bottomley" <JBottomley@...allels.com>, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org, joe@...ches.com Subject: Re: [PATCH 1/1] dpt_i2o: delete unnecessary null test on array Am 06.08.2014 12:39, schrieb Julia Lawall: > From: Julia Lawall <Julia.Lawall@...6.fr> > > Delete NULL test on array (always false). > > A simplified version of the semantic match that finds this problem is as > follows: (http://coccinelle.lip6.fr/) > > // <smpl> > @r@ > type T; > T [] e; > position p; > @@ > e ==@p NULL > > @ disable fld_to_ptr@ > expression e; > identifier f; > position r.p; > @@ > * e.f ==@p NULL > // </smpl> > > Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr> > > --- > I don't know if this is the correct change, or if some other test was > intended. But the code has been this way since at least 2.4.20, so it > would seem that no one has been bothered by the lack of whatever this was > supposed to test for. > > drivers/scsi/dpt_i2o.c | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c > index 67283ef..62e276b 100644 > --- a/drivers/scsi/dpt_i2o.c > +++ b/drivers/scsi/dpt_i2o.c > @@ -1169,11 +1169,6 @@ static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u6 > if(chan < 0 || chan >= MAX_CHANNEL) > return NULL; > chan is u32 and u32 < 0 ? for the next round. re, wh > - if( pHba->channel[chan].device == NULL){ > - printk(KERN_DEBUG"Adaptec I2O RAID: Trying to find device before they are allocated\n"); > - return NULL; > - } > - > d = pHba->channel[chan].device[id]; > if(!d || d->tid == 0) { > return NULL; > > -- > To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists