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Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull irq fixes from Thomas Gleixner:
 "Two small fixes for interrupt chip drivers:

   - Prevent UAF in the new RZA1 chip driver

   - Fix the wrong argument order of the GENMASK macro in the GIC code"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Fix misuse of GENMASK macro
  irqchip/renesas-rza1: Prevent use-after-free in rza1_irqc_probe()
This commit is contained in:
Linus Torvalds 2019-07-11 13:48:36 -07:00
commit 3a83f575a3
2 changed files with 9 additions and 8 deletions
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2
drivers/irqchip/irq-gic-v3-its.c
View file

@ -185,7 +185,7 @@ static struct its_collection *dev_event_to_col(struct its_device *its_dev,
static struct its_collection *valid_col(struct its_collection *col)
{
if (WARN_ON_ONCE(col->target_address & GENMASK_ULL(0, 15)))
if (WARN_ON_ONCE(col->target_address & GENMASK_ULL(15, 0)))
return NULL;
return col;

15
drivers/irqchip/irq-renesas-rza1.c
View file

@ -208,20 +208,19 @@ static int rza1_irqc_probe(struct platform_device *pdev)
return PTR_ERR(priv->base);
gic_node = of_irq_find_parent(np);
if (gic_node) {
if (gic_node)
parent = irq_find_host(gic_node);
of_node_put(gic_node);
}
if (!parent) {
dev_err(dev, "cannot find parent domain\n");
return -ENODEV;
ret = -ENODEV;
goto out_put_node;
}
ret = rza1_irqc_parse_map(priv, gic_node);
if (ret) {
dev_err(dev, "cannot parse %s: %d\n", "interrupt-map", ret);
return ret;
goto out_put_node;
}
priv->chip.name = "rza1-irqc",
@ -237,10 +236,12 @@ static int rza1_irqc_probe(struct platform_device *pdev)
priv);
if (!priv->irq_domain) {
dev_err(dev, "cannot initialize irq domain\n");
return -ENOMEM;
ret = -ENOMEM;
}
return 0;
out_put_node:
of_node_put(gic_node);
return ret;
}
static int rza1_irqc_remove(struct platform_device *pdev)