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PM / wakeirq: check that wake IRQ is valid before accepting it 

Check that IRQ number passed to dev_pm_set_wake_irq() and
dev_pm_set_dedicated_wake_irq() is valid (not negative) before
accepting it.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dmitry Torokhov 2015-11-12 10:26:57 -08:00 committed by Rafael J. Wysocki
parent d439e64f22
commit 6f9b36cd24
1 changed files with 6 additions and 0 deletions
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6
drivers/base/power/wakeirq.c
View File

@ -68,6 +68,9 @@ int dev_pm_set_wake_irq(struct device *dev, int irq)
struct wake_irq *wirq;
int err;
if (irq < 0)
return -EINVAL;
wirq = kzalloc(sizeof(*wirq), GFP_KERNEL);
if (!wirq)
return -ENOMEM;
@ -167,6 +170,9 @@ int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq)
struct wake_irq *wirq;
int err;
if (irq < 0)
return -EINVAL;
wirq = kzalloc(sizeof(*wirq), GFP_KERNEL);
if (!wirq)
return -ENOMEM;