modpost: remove unnecessary check in do_acpi_entry()

The 'id' pointer is never NULL since it has the same address as
'symval'.

Also, checking (*id)[0] is simpler than calling strlen().

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 634e407..34678ed 100644 (file)
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -570,7 +570,7 @@ static int do_acpi_entry(const char *filename,
        DEF_FIELD(symval, acpi_device_id, cls);
        DEF_FIELD(symval, acpi_device_id, cls_msk);
 
-       if (id && strlen((const char *)*id))
+       if ((*id)[0])
                sprintf(alias, "acpi*:%s:*", *id);
        else {
                int i, byte_shift, cnt = 0;