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From: Arnd Bergmann <arnd@arndb.de>
To: Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Vinod Koul <vinod.koul@intel.com>,
	Jeeja KP <jeeja.kp@intel.com>,
	Jayachandran B <jayachandran.b@intel.com>,
	Senthilnathan Veppur <senthilnathanx.veppur@intel.com>,
	"Subhransu S. Prusty" <subhransu.s.prusty@intel.com>,
	Ramesh Babu <ramesh.babu@intel.com>,
	G Kranthi <gudishax.kranthikumar@intel.com>,
	alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org
Subject: [PATCH] ASoC: Intel: Skylake: fix uninitialized pointer use
Date: Thu, 27 Apr 2017 12:59:58 +0200	[thread overview]
Message-ID: <20170427110014.2316664-1-arnd@arndb.de> (raw)

The error handling in bxt_sst_dsp_init() got changed in a way that
it now derefences an uninitialized pointer when printing a warning
about the device not being found:

sound/soc/intel/skylake/bxt-sst.c: In function 'bxt_sst_dsp_init':
sound/soc/intel/skylake/bxt-sst.c:567:14: error: 'skl' may be used uninitialized in this function [-Werror=maybe-uninitialized]

As we do have a valid device pointer available at the call site,
let's use that instead.

Fixes: 9fe9c7119283 ("ASoC: Intel: Skylake: Move sst common initialization to a helper function")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 sound/soc/intel/skylake/bxt-sst.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/bxt-sst.c b/sound/soc/intel/skylake/bxt-sst.c
index fde4bc0f35b0..f5e7dbb1ba39 100644
--- a/sound/soc/intel/skylake/bxt-sst.c
+++ b/sound/soc/intel/skylake/bxt-sst.c
@@ -564,7 +564,7 @@ int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 
 	ret = skl_sst_ctx_init(dev, irq, fw_name, dsp_ops, dsp, &skl_dev);
 	if (ret < 0) {
-		dev_err(skl->dev, "%s: no device\n", __func__);
+		dev_err(dev, "%s: no device\n", __func__);
 		return ret;
 	}
 
-- 
2.9.0

             reply	other threads:[~2017-04-27 11:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-27 10:59 Arnd Bergmann [this message]
2017-04-27 11:13 ` Takashi Sakamoto
2017-04-27 14:28 ` Vinod Koul

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