From: Hiroshi Doyu <hdoyu@nvidia.com>
Date: Mon, 30 Jul 2012 05:39:19 +0000 (+0300)
Subject: iommu/tegra: smmu: Fix error initial value at domain_init
X-Git-Tag: firefly_0821_release~3680^2~2191^2~6
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d1d076f16376066d0a51aa7d465f43059da71562;p=firefly-linux-kernel-4.4.55.git

iommu/tegra: smmu: Fix error initial value at domain_init

err initial value should be -EAGAIN. Otherwise 2nd iteration always
fails in the case as[0] is occupied.

Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---

diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 37669cc483b1..2a4bb36bc688 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -806,7 +806,7 @@ out:
 
 static int smmu_iommu_domain_init(struct iommu_domain *domain)
 {
-	int i, err = -ENODEV;
+	int i, err = -EAGAIN;
 	unsigned long flags;
 	struct smmu_as *as;
 	struct smmu_device *smmu = smmu_handle;