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iommu/amd: Remove unnecessary assignment

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From: Adrian Huang <ahuang12@lenovo.com>

The values of local variables are assigned after local variables
are declared, so no need to assign the initial value during the
variable declaration.

And, no need to assign NULL for the local variable 'ivrs_base'
after invoking acpi_put_table().

Signed-off-by: Adrian Huang <ahuang12@lenovo.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201210021330.2022-1-adrianhuang0701@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Adrian Huang 2020-12-10 10:13:30 +08:00 committed by Joerg Roedel
parent 6ee1d745b7
commit f8993dc666
1 changed files with 2 additions and 3 deletions
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5
drivers/iommu/amd/init.c
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@ -1911,7 +1911,7 @@ static void print_iommu_info(void)
static int __init amd_iommu_init_pci(void)
{
struct amd_iommu *iommu;
int ret = 0;
int ret;
for_each_iommu(iommu) {
ret = iommu_init_pci(iommu);
@ -2637,8 +2637,8 @@ static void __init free_dma_resources(void)
static int __init early_amd_iommu_init(void)
{
struct acpi_table_header *ivrs_base;
int i, remap_cache_sz, ret;
acpi_status status;
int i, remap_cache_sz, ret = 0;
u32 pci_id;
if (!amd_iommu_detected)
@ -2780,7 +2780,6 @@ static int __init early_amd_iommu_init(void)
out:
/* Don't leak any ACPI memory */
acpi_put_table(ivrs_base);
ivrs_base = NULL;
return ret;
}