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irqchip/gic-v3: Switch to bitmap_zalloc()

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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: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210618151657.65305-4-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2021-06-18 18:16:54 +03:00 • committed by Marc Zyngier
parent 81d3c9e7b4
commit ff5fe8867a
2 changed files with 5 additions and 6 deletions
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6
drivers/irqchip/irq-gic-v3-its.c
View file

@ -2140,7 +2140,7 @@ static unsigned long *its_lpi_alloc(int nr_irqs, u32 *base, int *nr_ids)
if (err)
goto out;
bitmap = kcalloc(BITS_TO_LONGS(nr_irqs), sizeof (long), GFP_ATOMIC);
bitmap = bitmap_zalloc(nr_irqs, GFP_ATOMIC);
if (!bitmap)
goto out;
@ -2156,7 +2156,7 @@ out:
static void its_lpi_free(unsigned long *bitmap, u32 base, u32 nr_ids)
{
WARN_ON(free_lpi_range(base, nr_ids));
kfree(bitmap);
bitmap_free(bitmap);
}
static void gic_reset_prop_table(void *va)
@ -3387,7 +3387,7 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
if (!dev || !itt || !col_map || (!lpi_map && alloc_lpis)) {
kfree(dev);
kfree(itt);
kfree(lpi_map);
bitmap_free(lpi_map);
kfree(col_map);
return NULL;
}

5
drivers/irqchip/irq-gic-v3-mbi.c
View file

@ -290,8 +290,7 @@ int __init mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent)
if (ret)
goto err_free_mbi;
mbi_ranges[n].bm = kcalloc(BITS_TO_LONGS(mbi_ranges[n].nr_spis),
sizeof(long), GFP_KERNEL);
mbi_ranges[n].bm = bitmap_zalloc(mbi_ranges[n].nr_spis, GFP_KERNEL);
if (!mbi_ranges[n].bm) {
ret = -ENOMEM;
goto err_free_mbi;
@ -329,7 +328,7 @@ int __init mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent)
err_free_mbi:
if (mbi_ranges) {
for (n = 0; n < mbi_range_nr; n++)
kfree(mbi_ranges[n].bm);
bitmap_free(mbi_ranges[n].bm);
kfree(mbi_ranges);
}