linux-kernel - [PATCH v2 4/5] soundwire: stream: fix support for multiple Slaves on the same link

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

Message-Id: <20200114235227.14502-5-pierre-louis.bossart@linux.intel.com>
Date:   Tue, 14 Jan 2020 17:52:26 -0600
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, tiwai@...e.de, broonie@...nel.org,
        vkoul@...nel.org, gregkh@...uxfoundation.org, jank@...ence.com,
        srinivas.kandagatla@...aro.org, slawomir.blauciak@...el.com,
        Bard liao <yung-chuan.liao@...ux.intel.com>,
        Rander Wang <rander.wang@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Rander Wang <rander.wang@...el.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Subject: [PATCH v2 4/5] soundwire: stream: fix support for multiple Slaves on the same link

From: Rander Wang <rander.wang@...el.com>

The existing code will unconditionally return after dealing with the
first Slave on a link. This return should only happen when there is
an error case.

Tested on Comet Lake platform.

Signed-off-by: Rander Wang <rander.wang@...el.com>
---
 drivers/soundwire/stream.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index c28ce7f0d742..da10f38298c0 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -587,10 +587,11 @@ static int sdw_notify_config(struct sdw_master_runtime *m_rt)
 
 		if (slave->ops->bus_config) {
 			ret = slave->ops->bus_config(slave, &bus->params);
-			if (ret < 0)
+			if (ret < 0) {
 				dev_err(bus->dev, "Notify Slave: %d failed\n",
 					slave->dev_num);
-			return ret;
+				return ret;
+			}
 		}
 	}
 
-- 
2.20.1