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iommu/vt-d: Switch to bitmap_zalloc() 

Switch to bitmap_zalloc() to show clearly what we are allocating.
Besides that it returns pointer of bitmap type instead of opaque void *.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Andy Shevchenko 2019-03-04 11:07:37 +02:00 committed by Joerg Roedel
parent 9e98c678c2
commit 5aba6c4740
1 changed files with 3 additions and 4 deletions
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7
drivers/iommu/intel_irq_remapping.c
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@ -548,8 +548,7 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
goto out_free_table;
}
bitmap = kcalloc(BITS_TO_LONGS(INTR_REMAP_TABLE_ENTRIES),
sizeof(long), GFP_ATOMIC);
bitmap = bitmap_zalloc(INTR_REMAP_TABLE_ENTRIES, GFP_ATOMIC);
if (bitmap == NULL) {
pr_err("IR%d: failed to allocate bitmap\n", iommu->seq_id);
goto out_free_pages;
@ -616,7 +615,7 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
return 0;
out_free_bitmap:
kfree(bitmap);
bitmap_free(bitmap);
out_free_pages:
__free_pages(pages, INTR_REMAP_PAGE_ORDER);
out_free_table:
@ -640,7 +639,7 @@ static void intel_teardown_irq_remapping(struct intel_iommu *iommu)
}
free_pages((unsigned long)iommu->ir_table->base,
INTR_REMAP_PAGE_ORDER);
kfree(iommu->ir_table->bitmap);
bitmap_free(iommu->ir_table->bitmap);
kfree(iommu->ir_table);
iommu->ir_table = NULL;
}