irqchip/gic-v2m: 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: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210618151657.65305-3-andriy.shevchenko@linux.intel.com

diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index be9ea6fd6f8b2e6a96743078f656772d0a927c1f..9349fc68b81a96ce8e70dd312ed61b22111f1b29 100644 (file)
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -269,7 +269,7 @@ static void gicv2m_teardown(void)
 
        list_for_each_entry_safe(v2m, tmp, &v2m_nodes, entry) {
                list_del(&v2m->entry);
-               kfree(v2m->bm);
+               bitmap_free(v2m->bm);
                iounmap(v2m->base);
                of_node_put(to_of_node(v2m->fwnode));
                if (is_fwnode_irqchip(v2m->fwnode))
@@ -386,8 +386,7 @@ static int __init gicv2m_init_one(struct fwnode_handle *fwnode,
                        break;
                }
        }
-       v2m->bm = kcalloc(BITS_TO_LONGS(v2m->nr_spis), sizeof(long),
-                         GFP_KERNEL);
+       v2m->bm = bitmap_zalloc(v2m->nr_spis, GFP_KERNEL);
        if (!v2m->bm) {
                ret = -ENOMEM;
                goto err_iounmap;