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path: root/drivers/acpi/scan.c
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Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r--drivers/acpi/scan.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 4eeea22..5452942 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -822,6 +822,9 @@ static int acpi_device_probe(struct device *dev)
struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver);
int ret;
+ if (acpi_dev->handler)
+ return -EINVAL;
+
if (!acpi_drv->ops.add)
return -ENOSYS;