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-rw-r--r--drivers/acpi/ec.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index a79e1b193e8..265a99c1eb1 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -864,10 +864,18 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context)
* the second address region returned is the status/command
* port.
*/
- if (ec->data_addr == 0)
+ if (ec->data_addr == 0) {
ec->data_addr = resource->data.io.minimum;
- else if (ec->command_addr == 0)
+ WARN(!request_region(ec->data_addr, 1, "EC data"),
+ "Could not request EC data io port %lu",
+ ec->data_addr);
+ }
+ else if (ec->command_addr == 0) {
ec->command_addr = resource->data.io.minimum;
+ WARN(!request_region(ec->command_addr, 1, "EC command"),
+ "Could not request EC command io port %lu",
+ ec->command_addr);
+ }
else
return AE_CTRL_TERMINATE;