irqchip/mvebu-odmi: 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/20210618151657.65305-7-andriy.shevchenko@linux.intel.com

diff --git a/drivers/irqchip/irq-mvebu-odmi.c b/drivers/irqchip/irq-mvebu-odmi.c
index b4d3678..dc4145a 100644 (file)
--- a/drivers/irqchip/irq-mvebu-odmi.c
+++ b/drivers/irqchip/irq-mvebu-odmi.c
@@ -171,8 +171,7 @@ static int __init mvebu_odmi_init(struct device_node *node,
        if (!odmis)
                return -ENOMEM;
 
-       odmis_bm = kcalloc(BITS_TO_LONGS(odmis_count * NODMIS_PER_FRAME),
-                          sizeof(long), GFP_KERNEL);
+       odmis_bm = bitmap_zalloc(odmis_count * NODMIS_PER_FRAME, GFP_KERNEL);
        if (!odmis_bm) {
                ret = -ENOMEM;
                goto err_alloc;
@@ -227,7 +226,7 @@ err_unmap:
                if (odmi->base && !IS_ERR(odmi->base))
                        iounmap(odmis[i].base);
        }
-       kfree(odmis_bm);
+       bitmap_free(odmis_bm);
 err_alloc:
        kfree(odmis);
        return ret;