From: Bard Liao <yung-chuan.liao@linux.intel.com>
To: alsa-devel@alsa-project.org, vkoul@kernel.org
Cc: pierre-louis.bossart@linux.intel.com, vinod.koul@linaro.org,
tiwai@suse.de, gregkh@linuxfoundation.org,
linux-kernel@vger.kernel.org, ranjani.sridharan@linux.intel.com,
hui.wang@canonical.com, broonie@kernel.org,
srinivas.kandagatla@linaro.org, jank@cadence.com,
mengdong.lin@intel.com, sanyog.r.kale@intel.com,
rander.wang@linux.intel.com, bard.liao@intel.com
Subject: [PATCH v2 1/4] soundwire: stream: fix NULL/IS_ERR confusion
Date: Fri, 4 Sep 2020 04:47:36 +0800 [thread overview]
Message-ID: <20200903204739.31206-2-yung-chuan.liao@linux.intel.com> (raw)
In-Reply-To: <20200903204739.31206-1-yung-chuan.liao@linux.intel.com>
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
snd_soc_dai_get_sdw_stream() can only return -ENOTSUPP or the stream,
NULL is not a possible value.
Fixes: 4550569bd779f ('soundwire: stream: add helper to startup/shutdown streams')
Reported-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
drivers/soundwire/stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index e4cf484f5905..12a4a4bba85a 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -1914,7 +1914,7 @@ void sdw_shutdown_stream(void *sdw_substream)
sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream);
- if (!sdw_stream) {
+ if (IS_ERR(sdw_stream)) {
dev_err(rtd->dev, "no stream found for DAI %s", dai->name);
return;
}
--
2.17.1
next prev parent reply other threads:[~2020-09-04 8:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 20:47 [PATCH v2 0/4] soundwire: Remove sdw stream operations from Intel Bard Liao
2020-09-03 20:47 ` Bard Liao [this message]
2020-09-03 20:47 ` [PATCH v2 2/4] soundwire: intel: fix NULL/ERR_PTR confusion Bard Liao
2020-09-03 20:47 ` [PATCH v2 3/4] soundwire: intel: remove .trigger operation Bard Liao
2020-09-03 20:47 ` [PATCH v2 4/4] soundwire: intel: remove stream handling from .prepare and .hw_free Bard Liao
2020-09-04 9:21 ` [PATCH v2 0/4] soundwire: Remove sdw stream operations from Intel Vinod Koul
2020-09-08 12:44 ` Jaroslav Kysela
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