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/c1f664d240... Author: Huacai Chen chenhuacai@loongson.cn AuthorDate: Tue, 09 Feb 2021 15:10:51 +08:00 Committer: Marc Zyngier maz@kernel.org 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: stable@vger.kernel.org Signed-off-by: Huacai Chen chenhuacai@loongson.cn Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20210209071051.2078435-1-chenhuacai@loongson.cn --- 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;