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From: Arvind Yadav <arvind.yadav.cs@gmail.com>
To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz,
	tiwai@suse.com, matthias.bgg@gmail.com
Cc: linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: [PATCH 4/5 v4] ASoC: intel: sst: Handle return value of platform_get_irq
Date: Wed, 29 Nov 2017 21:47:13 +0530	[thread overview]
Message-ID: <deb09b18d95f81661dbb8136fec947a548af6a77.1511970158.git.arvind.yadav.cs@gmail.com> (raw)
In-Reply-To: <4ce907b8389af30eb0677e70cf543a2b795cca12.1511970158.git.arvind.yadav.cs@gmail.com>
In-Reply-To: <4ce907b8389af30eb0677e70cf543a2b795cca12.1511970158.git.arvind.yadav.cs@gmail.com>

platform_get_irq() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2 :
              Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.
changes in v3 :
              Return -EIO insted of ctx->irq_num.
changes in v4 :
              Add separate error for irq == 0 and irq < 0.

 sound/soc/intel/atom/sst/sst_acpi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c
index 0e928d5..aec7408 100644
--- a/sound/soc/intel/atom/sst/sst_acpi.c
+++ b/sound/soc/intel/atom/sst/sst_acpi.c
@@ -236,6 +236,9 @@ static int sst_platform_get_resources(struct intel_sst_drv *ctx)
 	/* Find the IRQ */
 	ctx->irq_num = platform_get_irq(pdev,
 				ctx->pdata->res_info->acpi_ipc_irq_index);
+	if (ctx->irq_num <= 0)
+		return ctx->irq_num < 0 ? ctx->irq_num : -EIO;
+
 	return 0;
 }
 
-- 
2.7.4

  parent reply	other threads:[~2017-11-29 16:17 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-29 16:17 [PATCH 1/5 v5] ASoC: ep93xx-ac97: Fix platform_get_irq's error checking Arvind Yadav
2017-11-29 16:17 ` [PATCH 2/5 v5] ASoC: mt8173: " Arvind Yadav
2017-12-01 13:44   ` Applied "ASoC: mt8173: Fix platform_get_irq's error checking" to the asoc tree Mark Brown
2017-11-29 16:17 ` [PATCH 3/5 v5] ASoC: nuc900: Fix platform_get_irq's error checking Arvind Yadav
2017-12-01 13:44   ` Applied "ASoC: nuc900: Fix platform_get_irq's error checking" to the asoc tree Mark Brown
2017-11-29 16:17 ` Arvind Yadav [this message]
2017-12-01 13:44   ` Applied "ASoC: intel: sst: Handle return value of platform_get_irq" " Mark Brown
2017-11-29 16:17 ` [PATCH 5/5 v4] ASoC: intel: mfld: Handle return value of platform_get_irq Arvind Yadav
2017-12-01 13:43   ` Applied "ASoC: intel: mfld: Handle return value of platform_get_irq" to the asoc tree Mark Brown
2017-12-01 13:44 ` Applied "ASoC: ep93xx-ac97: Fix platform_get_irq's error checking" " Mark Brown

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