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Date:      Fri, 24 Feb 2017 13:02:48 -0800
From:      "Ngie Cooper (yaneurabeya)" <yaneurabeya@gmail.com>
To:        Ian Lepore <ian@freebsd.org>
Cc:        Ngie Cooper <ngie@FreeBSD.org>, src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r314189 - head/lib/libcam
Message-ID:  <769272AC-D30C-4C69-B4D3-9805B9FFC28D@gmail.com>
In-Reply-To: <1487950593.25520.20.camel@freebsd.org>
References:  <201702240624.v1O6OdRr094467@repo.freebsd.org> <1487950593.25520.20.camel@freebsd.org>

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> On Feb 24, 2017, at 07:36, Ian Lepore <ian@freebsd.org> wrote:
>=20
> On Fri, 2017-02-24 at 06:24 +0000, Ngie Cooper wrote:
>> Author: ngie
>> Date: Fri Feb 24 06:24:39 2017
>> New Revision: 314189
>> URL: https://svnweb.freebsd.org/changeset/base/314189
>>=20
>> Log:
>>   Fix up NULL/'\0' uses and fix 2 derefs after NULL
>>=20
>>   MFC after:	2 weeks
>>   Reported by:	Coverity
>>   CID:		1018898, 1018899
>>   Differential Revision:	https://reviews.freebsd.org/D6142
>>   Sponsored by:	Dell EMC Isilon
>>=20
>> Modified:
>>   head/lib/libcam/scsi_cmdparse.c
>>=20
>> Modified: head/lib/libcam/scsi_cmdparse.c
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D
>> --- head/lib/libcam/scsi_cmdparse.c	Fri Feb 24 01:39:12 2017
>> (r314188)
>> +++ head/lib/libcam/scsi_cmdparse.c	Fri Feb 24 06:24:39 2017
>> (r314189)
>> @@ -128,14 +128,14 @@ do_buff_decode(u_int8_t *buff, size_t le
>>  				*(va_arg(*ap, int *)) =3D (ARG); \
>>  			assigned++; \
>>  		} \
>> -		field_name[0] =3D 0; \
>> +		field_name[0] =3D '\0'; \
>=20
> Is coverity seriously complaining about using 0 instead of '\0'?  What
> possible *real* benefit (not just shutting up coverity) does this =
churn
> bring?

	Warner made the same comment.
	It was actually a combination of issues brought up by Coverity =
and coccinelle (badzero.cocci). The forward-NULL CIDs noted were pointed =
out by Coverity. The NULL/=E2=80=98\0=E2=80=99 use issues were pointed =
out by coccinelle.
Thanks!
-Ngie

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