linux-kernel - [PATCH v2] rpmsg: qcom_smd: Fix redundant channel->registered assignment

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Fri, 14 Jan 2022 14:32:59 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     agross@...nel.org
Cc:     bjorn.andersson@...aro.org, mathieu.poirier@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        konrad.dybcio@...ainline.org, marijn.suijten@...ainline.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH v2] rpmsg: qcom_smd: Fix redundant channel->registered assignment

In qcom_channel_state_worker(), we are setting channel->registered
to true when registering a channel, but this is getting repeated both
before and after re-locking the channels_lock spinlock, which is
obviously a typo.
Remove the assignment done out of the spinlock to fix this redundancy.

Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
v2: Fixed funny typo in commit title (channel->assigned => channel->registered)

 drivers/rpmsg/qcom_smd.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index 540e027f08c4..0ee3f7ddabb0 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1298,9 +1298,7 @@ static void qcom_channel_state_worker(struct work_struct *work)
 
 		spin_unlock_irqrestore(&edge->channels_lock, flags);
 		qcom_smd_create_device(channel);
-		channel->registered = true;
 		spin_lock_irqsave(&edge->channels_lock, flags);
-
 		channel->registered = true;
 	}
 
-- 
2.33.1