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Wed, 18 Dec 2019 08:17:24 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 773AB11384D2; Wed, 18 Dec 2019 09:17:21 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576657049; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=tG58nF4sXqRdxJ0EBOKqq4NTFPvei9v1v/+uaiuykRE=; b=fPB+9eSpCETSTtFV2347agYt6M1JOpXUSvkl6iLI07excl5q8KSsafO6BV/jgZi4cy7+t0 KGHks93UA5Rsh61R+BpbwuoWMoJW6EX4RjzILGokd9RcUjDLOQTq5fDnMrs3n66xTtxZI8 z6S79zyBqfBNQJMV4QKombD27TLVuj0= From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PULL v2 10/35] qga: Fix guest-get-fsinfo error API violations Date: Wed, 18 Dec 2019 09:16:56 +0100 Message-Id: <20191218081721.23520-11-armbru@redhat.com> In-Reply-To: <20191218081721.23520-1-armbru@redhat.com> References: <20191218081721.23520-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: ImDVafSKN_SosXfHp6xR7w-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vladimir Sementsov-Ogievskiy , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Michael Roth Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" build_guest_fsinfo_for_virtual_device() dereferences @errp when build_guest_fsinfo_for_device() fails. That's wrong; see the big comment in error.h. Introduced in commit 46d4c5723e "qga: Add guest-get-fsinfo command". No caller actually passes null. Fix anyway: splice in a local Error *err, and error_propagate(). Cc: Michael Roth Signed-off-by: Markus Armbruster Message-Id: <20191204093625.14836-10-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Vladimir Sementsov-Ogievskiy --- qga/commands-posix.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 0be301a4ea..10d818c3b2 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1060,6 +1060,7 @@ static void build_guest_fsinfo_for_virtual_device(cha= r const *syspath, GuestFilesystemInfo *fs, Error **errp) { + Error *err =3D NULL; DIR *dir; char *dirpath; struct dirent *entry; @@ -1089,10 +1090,11 @@ static void build_guest_fsinfo_for_virtual_device(c= har const *syspath, =20 g_debug(" slave device '%s'", entry->d_name); path =3D g_strdup_printf("%s/slaves/%s", syspath, entry->d_nam= e); - build_guest_fsinfo_for_device(path, fs, errp); + build_guest_fsinfo_for_device(path, fs, &err); g_free(path); =20 - if (*errp) { + if (err) { + error_propagate(errp, err); break; } } --=20 2.21.0