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Tue, 24 Mar 2026 11:03:13 -0700 (PDT) From: Leo Timmins To: Pasha Tatashin , Mike Rapoport Cc: Pratyush Yadav , Andrew Morton , linux-kernel@vger.kernel.org, Leo Timmins Subject: [PATCH 1/3] liveupdate: propagate file deserialization failures Date: Wed, 25 Mar 2026 02:02:56 +0800 Message-ID: <20260324180258.1282560-2-leotimmins1974@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260324180258.1282560-1-leotimmins1974@gmail.com> References: <20260324180258.1282560-1-leotimmins1974@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" luo_session_deserialize() ignored the return value from luo_file_deserialize(). As a result, a session could be left partially restored even though the /dev/liveupdate open path treats deserialization failures as fatal. Propagate the error so a failed file deserialization aborts session deserialization instead of silently continuing. Fixes: 16cec0d26521 ("liveupdate: luo_session: add ioctls for file preserva= tion") Signed-off-by: Leo Timmins --- kernel/liveupdate/luo_session.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/kernel/liveupdate/luo_session.c b/kernel/liveupdate/luo_sessio= n.c index 783677295640..25ae704d7787 100644 --- a/kernel/liveupdate/luo_session.c +++ b/kernel/liveupdate/luo_session.c @@ -558,8 +558,13 @@ int luo_session_deserialize(void) } =20 scoped_guard(mutex, &session->mutex) { - luo_file_deserialize(&session->file_set, - &sh->ser[i].file_set_ser); + err =3D luo_file_deserialize(&session->file_set, + &sh->ser[i].file_set_ser); + } + if (err) { + pr_warn("Failed to deserialize files for session [%s] %pe\n", + session->name, ERR_PTR(err)); + return err; } } =20 --=20 2.53.0