From: Alexey Starikovskiy <[email protected]>
acpi_get_devices() returns success if it did not find any device.
We have to check for this case.
Signed-off-by: Alexey Starikovskiy <[email protected]>
---
drivers/acpi/ec.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 43749c8..3f7935a 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -886,7 +886,8 @@ int __init acpi_ec_ecdt_probe(void)
printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n");
status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device,
boot_ec, NULL);
- if (ACPI_FAILURE(status))
+ /* Check that acpi_get_devices actually find something */
+ if (ACPI_FAILURE(status) || !boot_ec->handle)
goto error;
}
-
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