usb: gadget: f_uac1: use usb_gstrings_attach

Use the new usb_gstring_attach interface.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index e0399d2..3457537 100644 (file)
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -664,6 +664,7 @@ f_audio_bind(struct usb_configuration *c, struct usb_function *f)
 {
        struct usb_composite_dev *cdev = c->cdev;
        struct f_audio          *audio = func_to_audio(f);
+       struct usb_string       *us;
        int                     status;
        struct usb_ep           *ep = NULL;
        struct f_uac1_opts      *audio_opts;
@@ -678,23 +679,17 @@ f_audio_bind(struct usb_configuration *c, struct usb_function *f)
                        return status;
                audio_opts->bound = true;
        }
-       if (strings_uac1[0].id == 0) {
-               status = usb_string_ids_tab(c->cdev, strings_uac1);
-               if (status < 0)
-                       goto fail;
-               ac_interface_desc.iInterface = strings_uac1[STR_AC_IF].id;
-               input_terminal_desc.iTerminal =
-                       strings_uac1[STR_INPUT_TERMINAL].id;
-               input_terminal_desc.iChannelNames =
-                       strings_uac1[STR_INPUT_TERMINAL_CH_NAMES].id;
-               feature_unit_desc.iFeature = strings_uac1[STR_FEAT_DESC_0].id;
-               output_terminal_desc.iTerminal =
-                       strings_uac1[STR_OUTPUT_TERMINAL].id;
-               as_interface_alt_0_desc.iInterface =
-                       strings_uac1[STR_AS_IF_ALT0].id;
-               as_interface_alt_1_desc.iInterface =
-                       strings_uac1[STR_AS_IF_ALT1].id;
-       }
+       us = usb_gstrings_attach(cdev, uac1_strings, ARRAY_SIZE(strings_uac1));
+       if (IS_ERR(us))
+               return PTR_ERR(us);
+       ac_interface_desc.iInterface = us[STR_AC_IF].id;
+       input_terminal_desc.iTerminal = us[STR_INPUT_TERMINAL].id;
+       input_terminal_desc.iChannelNames = us[STR_INPUT_TERMINAL_CH_NAMES].id;
+       feature_unit_desc.iFeature = us[STR_FEAT_DESC_0].id;
+       output_terminal_desc.iTerminal = us[STR_OUTPUT_TERMINAL].id;
+       as_interface_alt_0_desc.iInterface = us[STR_AS_IF_ALT0].id;
+       as_interface_alt_1_desc.iInterface = us[STR_AS_IF_ALT1].id;
+
 
        f_audio_build_desc(audio);
 
@@ -815,7 +810,6 @@ static struct usb_function *f_audio_alloc(struct usb_function_instance *fi)
        INIT_LIST_HEAD(&audio->play_queue);
        spin_lock_init(&audio->lock);
 
-       audio->card.func.strings = uac1_strings;
        audio->card.func.bind = f_audio_bind;
        audio->card.func.unbind = f_audio_unbind;
        audio->card.func.set_alt = f_audio_set_alt;