From: Suravee Suthikulpanit <[email protected]> Add error messages to prevent silent failure.
Signed-off-by: Vasant Hegde <[email protected]> Signed-off-by: Suravee Suthikulpanit <[email protected]> --- drivers/iommu/amd/init.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index b10fb52ea442..6b5af568f3d5 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -1943,9 +1943,11 @@ static int __init amd_iommu_init_pci(void) for_each_iommu(iommu) { ret = iommu_init_pci(iommu); - if (ret) - break; - + if (ret) { + pr_err("IOMMU%d: Failed to initialize IOMMU Hardware (error=%d)!\n", + iommu->index, ret); + goto out; + } /* Need to setup range after PCI init */ iommu_set_cwwb_range(iommu); } @@ -1961,6 +1963,11 @@ static int __init amd_iommu_init_pci(void) * active. */ ret = amd_iommu_init_api(); + if (ret) { + pr_err("IOMMU: Failed to initialize IOMMU-API interface (error=%d)!\n", + ret); + goto out; + } init_device_table_dma(); @@ -1970,6 +1977,7 @@ static int __init amd_iommu_init_pci(void) if (!ret) print_iommu_info(); +out: return ret; } -- 2.27.0 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
