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From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Maruthi Srinivas Bayyavarapu
	<maruthi.srinivas.bayyavarapu@xilinx.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>,
	Michal Simek <michal.simek@xilinx.com>
Cc: alsa-devel@alsa-project.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] ASoC: xlnx: fix error handling in xlnx_formatter_pcm_probe
Date: Wed, 26 Dec 2018 15:11:06 -0600	[thread overview]
Message-ID: <20181226211106.GA16692@embeddedor> (raw)

Currently, if platform_get_irq_byname() fails, the returned error
turns into a huge value, once it is being store into a variable
of type unsigned int, hence never actually reporting any error
and causing unexpected behavior when using the values stored
in aud_drv_data->s2mm_irq and aud_drv_data->mm2s_irq.

Fix this by changing the type of variables s2mm_irq and mm2s_irq in
structure xlnx_pcm_drv_data from unsigned int to int.

Addresses-Coverity-ID: 1476096 ("Unsigned compared against 0")
Fixes: 796175a94a7f ("ASoC: xlnx: add pcm formatter platform driver")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 sound/soc/xilinx/xlnx_formatter_pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/xilinx/xlnx_formatter_pcm.c b/sound/soc/xilinx/xlnx_formatter_pcm.c
index f7235f7664d7..d2194da928e7 100644
--- a/sound/soc/xilinx/xlnx_formatter_pcm.c
+++ b/sound/soc/xilinx/xlnx_formatter_pcm.c
@@ -76,8 +76,8 @@ struct xlnx_pcm_drv_data {
 	void __iomem *mmio;
 	bool s2mm_presence;
 	bool mm2s_presence;
-	unsigned int s2mm_irq;
-	unsigned int mm2s_irq;
+	int s2mm_irq;
+	int mm2s_irq;
 	struct snd_pcm_substream *play_stream;
 	struct snd_pcm_substream *capture_stream;
 	struct clk *axi_clk;
-- 
2.20.1

WARNING: multiple messages have this Message-ID (diff)
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Maruthi Srinivas Bayyavarapu
	<maruthi.srinivas.bayyavarapu@xilinx.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>,
	Michal Simek <michal.simek@xilinx.com>
Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] ASoC: xlnx: fix error handling in xlnx_formatter_pcm_probe
Date: Wed, 26 Dec 2018 15:11:06 -0600	[thread overview]
Message-ID: <20181226211106.GA16692@embeddedor> (raw)

Currently, if platform_get_irq_byname() fails, the returned error
turns into a huge value, once it is being store into a variable
of type unsigned int, hence never actually reporting any error
and causing unexpected behavior when using the values stored
in aud_drv_data->s2mm_irq and aud_drv_data->mm2s_irq.

Fix this by changing the type of variables s2mm_irq and mm2s_irq in
structure xlnx_pcm_drv_data from unsigned int to int.

Addresses-Coverity-ID: 1476096 ("Unsigned compared against 0")
Fixes: 796175a94a7f ("ASoC: xlnx: add pcm formatter platform driver")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 sound/soc/xilinx/xlnx_formatter_pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/xilinx/xlnx_formatter_pcm.c b/sound/soc/xilinx/xlnx_formatter_pcm.c
index f7235f7664d7..d2194da928e7 100644
--- a/sound/soc/xilinx/xlnx_formatter_pcm.c
+++ b/sound/soc/xilinx/xlnx_formatter_pcm.c
@@ -76,8 +76,8 @@ struct xlnx_pcm_drv_data {
 	void __iomem *mmio;
 	bool s2mm_presence;
 	bool mm2s_presence;
-	unsigned int s2mm_irq;
-	unsigned int mm2s_irq;
+	int s2mm_irq;
+	int mm2s_irq;
 	struct snd_pcm_substream *play_stream;
 	struct snd_pcm_substream *capture_stream;
 	struct clk *axi_clk;
-- 
2.20.1


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             reply	other threads:[~2018-12-26 21:11 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-26 21:11 Gustavo A. R. Silva [this message]
2018-12-26 21:11 ` [PATCH] ASoC: xlnx: fix error handling in xlnx_formatter_pcm_probe Gustavo A. R. Silva
2018-12-31 19:42 ` Applied "ASoC: xlnx: fix error handling in xlnx_formatter_pcm_probe" to the asoc tree Mark Brown
2018-12-31 19:42   ` Mark Brown
2019-01-04 14:01 ` Mark Brown
2019-01-04 14:01   ` Mark Brown
2019-01-04 17:09 ` Mark Brown
2019-01-04 17:09   ` Mark Brown
2019-01-07 12:31 ` Mark Brown
2019-01-07 12:31   ` Mark Brown

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