iommu/amd: Fix ivrs_base memleak in early_amd_iommu_init()

commit 923b70581cb6acede90f8aaf4afe5d1c58c67b71 upstream.

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

Fixes: 82582f85ed22 ("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>

diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 7add9bcf45dc8bcb19ed3f882bade9b4640889c7..3a97cc667943ff7e504e1d5db3afb82234eed283 100644 (file)
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -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;
        }
 
        /*