Messages in this thread Patch in this message | | | Date | Wed, 16 Jun 2010 12:08:00 +0200 | From | Michal Nazarewicz <> | Subject | [PATCHv5 05/11] USB: gadget: f_fs: use usb_string_ids_n() |
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Use usb_string_ids_n() function to simplify string ids registeration.
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> --- drivers/usb/gadget/f_fs.c | 30 ++++++++++++------------------ 1 files changed, 12 insertions(+), 18 deletions(-)
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 3fe120f..97c2ac2 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -1377,7 +1377,8 @@ static void ffs_data_reset(struct ffs_data *ffs) static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev) { - unsigned i, count; + struct usb_gadget_strings **lang; + int first_id; ENTER(); @@ -1385,7 +1386,9 @@ static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev) || test_and_set_bit(FFS_FL_BOUND, &ffs->flags))) return -EBADFD; - ffs_data_get(ffs); + first_id = usb_string_ids_n(cdev, ffs->strings_count); + if (unlikely(first_id < 0)) + return first_id; ffs->ep0req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL); if (unlikely(!ffs->ep0req)) @@ -1393,25 +1396,16 @@ static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev) ffs->ep0req->complete = ffs_ep0_complete; ffs->ep0req->context = ffs; - /* Get strings identifiers */ - for (count = ffs->strings_count, i = 0; i < count; ++i) { - struct usb_gadget_strings **lang; - - int id = usb_string_id(cdev); - if (unlikely(id < 0)) { - usb_ep_free_request(cdev->gadget->ep0, ffs->ep0req); - ffs->ep0req = NULL; - return id; - } - - lang = ffs->stringtabs; - do { - (*lang)->strings[i].id = id; - ++lang; - } while (*lang); + lang = ffs->stringtabs; + for (lang = ffs->stringtabs; *lang; ++lang) { + struct usb_string *str = (*lang)->strings; + int id = first_id; + for (; str->s; ++id, ++str) + str->id = id; } ffs->gadget = cdev->gadget; + ffs_data_get(ffs); return 0; } -- 1.7.1
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