drivers:usb: use get|put_unaligned_le16

This patch use get|put_unaligned_le16 to access structure data
to avoid data abort on some ARM platforms.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Marek Vasut <marex@denx.de>

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 45bc132aef6729827594dcf1a373c7e49510114f..5b348d7a6ef2a6b50bd59b55e165279d9f53c778 100644 (file)
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -577,9 +577,9 @@ static int fsg_setup(struct usb_function *f,
 {
        struct fsg_dev          *fsg = fsg_from_func(f);
        struct usb_request      *req = fsg->common->ep0req;
-       u16                     w_index = le16_to_cpu(ctrl->wIndex);
-       u16                     w_value = le16_to_cpu(ctrl->wValue);
-       u16                     w_length = le16_to_cpu(ctrl->wLength);
+       u16                     w_index = get_unaligned_le16(&ctrl->wIndex);
+       u16                     w_value = get_unaligned_le16(&ctrl->wValue);
+       u16                     w_length = get_unaligned_le16(&ctrl->wLength);
 
        if (!fsg_is_set(fsg->common))
                return -EOPNOTSUPP;
@@ -617,7 +617,7 @@ static int fsg_setup(struct usb_function *f,
             "unknown class-specific control req "
             "%02x.%02x v%04x i%04x l%u\n",
             ctrl->bRequestType, ctrl->bRequest,
-            le16_to_cpu(ctrl->wValue), w_index, w_length);
+            get_unaligned_le16(&ctrl->wValue), w_index, w_length);
        return -EOPNOTSUPP;
 }