ACPI: Fix a warning of discarding qualifiers from pointer target type

drivers/acpi/ec.c: In function `acpi_ec_ecdt_probe':
drivers/acpi/ec.c:873: warning: passing arg 1 of `acpi_get_devices' discards qualifiers from pointer target type

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/acpi/acstruct.h b/include/acpi/acstruct.h
index aeb4498e5e06..88482655407f 100644
--- a/include/acpi/acstruct.h
+++ b/include/acpi/acstruct.h
@@ -146,7 +146,7 @@ struct acpi_init_walk_info {
 struct acpi_get_devices_info {
         acpi_walk_callback user_function;
         void *context;
-        char *hid;
+        const char *hid;
 };
 
 union acpi_aml_operands {