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iommu/amd: Fix ivrs_base memleak in early_amd_iommu_init()

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commit 923b70581cb6acede90f8aaf4afe5d1c58c67b71 upstream.

Fix a permanent ACPI table memory leak in early_amd_iommu_init() when
CMPXCHG16B feature is not supported

Fixes: 82582f85ed ("iommu/amd: Disable AMD IOMMU if CMPXCHG16B feature is not supported")
Cc: stable@vger.kernel.org
Signed-off-by: Zhen Ni <zhen.ni@easystack.cn>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20250822024915.673427-1-zhen.ni@easystack.cn
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhen Ni 2025-08-22 10:49:15 +08:00 committed by Greg Kroah-Hartman
parent 7ff7d16649
commit b0c0e23106
1 changed files with 2 additions and 1 deletions
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3
drivers/iommu/amd/init.c
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@ -3048,7 +3048,8 @@ static int __init early_amd_iommu_init(void)
if (!boot_cpu_has(X86_FEATURE_CX16)) {
pr_err("Failed to initialize. The CMPXCHG16B feature is required.\n");
return -EINVAL;
ret = -EINVAL;
goto out;
}
/*