From: Piotr Wilczek <p.wilczek@samsung.com>
Date: Wed, 26 Jun 2013 06:22:05 +0000 (+0200)
Subject: drivers:usb: use get|put_unaligned_le16
X-Git-Tag: v2013.07-rc3~26^2~7
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7f3cf4060fe8e93d785581ea2047929c1cb15a18;p=karo-tx-uboot.git

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 45bc132aef..5b348d7a6e 100644
--- 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;
 }