irqchip/ls-scfg-msi: Switch to devm_bitmap_zalloc()

Switch to devm_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/20210618151657.65305-5-andriy.shevchenko@linux.intel.com

diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c
index 55322da..b4927e4 100644 (file)
--- a/drivers/irqchip/irq-ls-scfg-msi.c
+++ b/drivers/irqchip/irq-ls-scfg-msi.c
@@ -362,10 +362,7 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
 
        msi_data->irqs_num = MSI_IRQS_PER_MSIR *
                             (1 << msi_data->cfg->ibs_shift);
-       msi_data->used = devm_kcalloc(&pdev->dev,
-                                   BITS_TO_LONGS(msi_data->irqs_num),
-                                   sizeof(*msi_data->used),
-                                   GFP_KERNEL);
+       msi_data->used = devm_bitmap_zalloc(&pdev->dev, msi_data->irqs_num, GFP_KERNEL);
        if (!msi_data->used)
                return -ENOMEM;
        /*