The following commit has been merged into the irq/irqchip-next branch of irqchip:
Commit-ID: c1f664d2400e73d5ca0fcd067fa5847d2c789c11 Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/c1f664d2400e73d5ca0fcd067fa5847d2c789c11 Author: Huacai Chen <[email protected]> AuthorDate: Tue, 09 Feb 2021 15:10:51 +08:00 Committer: Marc Zyngier <[email protected]> CommitterDate: Tue, 09 Feb 2021 10:41:40 irqchip/loongson-pch-msi: Use bitmap_zalloc() to allocate bitmap Currently we use bitmap_alloc() to allocate msi bitmap which should be initialized with zero. This is obviously wrong but it works because msi can fallback to legacy interrupt mode. So use bitmap_zalloc() instead. Fixes: 632dcc2c75ef6de3272aa ("irqchip: Add Loongson PCH MSI controller") Cc: [email protected] Signed-off-by: Huacai Chen <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected] --- drivers/irqchip/irq-loongson-pch-msi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-loongson-pch-msi.c b/drivers/irqchip/irq-loongson-pch-msi.c index 12aeeab..32562b7 100644 --- a/drivers/irqchip/irq-loongson-pch-msi.c +++ b/drivers/irqchip/irq-loongson-pch-msi.c @@ -225,7 +225,7 @@ static int pch_msi_init(struct device_node *node, goto err_priv; } - priv->msi_map = bitmap_alloc(priv->num_irqs, GFP_KERNEL); + priv->msi_map = bitmap_zalloc(priv->num_irqs, GFP_KERNEL); if (!priv->msi_map) { ret = -ENOMEM; goto err_priv;
