linux-kernel - [PATCH 5.12 580/677] iommu/vt-d: Fix an error handling path in intel_prepare_irq

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Message-Id: <20210512144856.655111172@linuxfoundation.org>
Date:   Wed, 12 May 2021 16:50:26 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <jroedel@...e.de>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 580/677] iommu/vt-d: Fix an error handling path in intel_prepare_irq_remapping()

From: Christophe JAILLET <christophe.jaillet@...adoo.fr>

[ Upstream commit 745610c4a3e3baaebf6d1f8cd5b4d82892432520 ]

If 'intel_cap_audit()' fails, we should return directly, as already done in
the surrounding error handling path.

Fixes: ad3d19029979 ("iommu/vt-d: Audit IOMMU Capabilities and add helper functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Acked-by: Lu Baolu <baolu.lu@...ux.intel.com>
Link: https://lore.kernel.org/r/98d531caabe66012b4fffc7813fd4b9470afd517.1618124777.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Joerg Roedel <jroedel@...e.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/iommu/intel/irq_remapping.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c
index 611ef5243cb6..5c16ebe037a1 100644
--- a/drivers/iommu/intel/irq_remapping.c
+++ b/drivers/iommu/intel/irq_remapping.c
@@ -736,7 +736,7 @@ static int __init intel_prepare_irq_remapping(void)
 		return -ENODEV;
 
 	if (intel_cap_audit(CAP_AUDIT_STATIC_IRQR, NULL))
-		goto error;
+		return -ENODEV;
 
 	if (!dmar_ir_support())
 		return -ENODEV;
-- 
2.30.2