ACPICA: Add a couple of casts to uthex.c

ACPICA commit 2ba5d3fdaa24d66d67694cbae6ec66971a7a67c1

Required in some environments.

Link: https://github.com/acpica/acpica/commit/2ba5d3fd
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpica/uthex.c b/drivers/acpi/acpica/uthex.c
index 3a4ca95..36d2fc7 100644 (file)
--- a/drivers/acpi/acpica/uthex.c
+++ b/drivers/acpi/acpica/uthex.c
@@ -92,7 +92,8 @@ acpi_status acpi_ut_ascii_to_hex_byte(char *two_ascii_chars, u8 *return_byte)
 
        /* Both ASCII characters must be valid hex digits */
 
-       if (!isxdigit(two_ascii_chars[0]) || !isxdigit(two_ascii_chars[1])) {
+       if (!isxdigit((int)two_ascii_chars[0]) ||
+           !isxdigit((int)two_ascii_chars[1])) {
                return (AE_BAD_HEX_CONSTANT);
        }