From a770ccd91d99f997e023b554d9e2033ce79e019e Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.i.king@gmail.com>
Date: Wed, 24 Apr 2024 15:16:27 +0800
Subject: [PATCH] iommu/vt-d: Remove redundant assignment to variable err
Variable err is being assigned a value that is never read. It is
either being re-assigned later on error exit paths, or never referenced
on the non-error path.
Cleans up clang scan build warning:
drivers/iommu/intel/dmar.c:1070:2: warning: Value stored to 'err' is
never read [deadcode.DeadStores]`
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20240411090535.306326-1-colin.i.king@gmail.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/intel/dmar.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c
index 36d7427b12026..351be94552146 100644
--- a/drivers/iommu/intel/dmar.c
+++ b/drivers/iommu/intel/dmar.c
@@ -1067,7 +1067,6 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd)
goto error_free_seq_id;
}
- err = -EINVAL;
if (!cap_sagaw(iommu->cap) &&
(!ecap_smts(iommu->ecap) || ecap_slts(iommu->ecap))) {
pr_info("%s: No supported address widths. Not attempting DMA translation.\n",
--
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