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-rw-r--r--drivers/acpi/ec.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 265a99c1eb14..1fa0aafebe2a 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -818,6 +818,12 @@ static int acpi_ec_add(struct acpi_device *device)
818 if (!first_ec) 818 if (!first_ec)
819 first_ec = ec; 819 first_ec = ec;
820 device->driver_data = ec; 820 device->driver_data = ec;
821
822 WARN(!request_region(ec->data_addr, 1, "EC data"),
823 "Could not request EC data io port 0x%lx", ec->data_addr);
824 WARN(!request_region(ec->command_addr, 1, "EC cmd"),
825 "Could not request EC cmd io port 0x%lx", ec->command_addr);
826
821 pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n", 827 pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
822 ec->gpe, ec->command_addr, ec->data_addr); 828 ec->gpe, ec->command_addr, ec->data_addr);
823 829
@@ -844,6 +850,8 @@ static int acpi_ec_remove(struct acpi_device *device, int type)
844 kfree(handler); 850 kfree(handler);
845 } 851 }
846 mutex_unlock(&ec->lock); 852 mutex_unlock(&ec->lock);
853 release_region(ec->data_addr, 1);
854 release_region(ec->command_addr, 1);
847 device->driver_data = NULL; 855 device->driver_data = NULL;
848 if (ec == first_ec) 856 if (ec == first_ec)
849 first_ec = NULL; 857 first_ec = NULL;
@@ -864,18 +872,10 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context)
864 * the second address region returned is the status/command 872 * the second address region returned is the status/command
865 * port. 873 * port.
866 */ 874 */
867 if (ec->data_addr == 0) { 875 if (ec->data_addr == 0)
868 ec->data_addr = resource->data.io.minimum; 876 ec->data_addr = resource->data.io.minimum;
869 WARN(!request_region(ec->data_addr, 1, "EC data"), 877 else if (ec->command_addr == 0)
870 "Could not request EC data io port %lu",
871 ec->data_addr);
872 }
873 else if (ec->command_addr == 0) {
874 ec->command_addr = resource->data.io.minimum; 878 ec->command_addr = resource->data.io.minimum;
875 WARN(!request_region(ec->command_addr, 1, "EC command"),
876 "Could not request EC command io port %lu",
877 ec->command_addr);
878 }
879 else 879 else
880 return AE_CTRL_TERMINATE; 880 return AE_CTRL_TERMINATE;
881 881