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.wilc...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
CC: Marek Vasut <ma...@denx.de>
---
drivers/usb/gadget/f_mass_storage.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/gadget/f_mass_storage.c
b/drivers/usb/gadget/f_mass_storage.c
index c28866f..b7e0df3 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;
}
@@ -2261,7 +2261,7 @@ reset:
if (rc)
goto reset;
fsg->bulk_out_enabled = 1;
- common->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize);
+ common->bulk_out_maxpacket = get_unaligned_le16(&d->wMaxPacketSize);
clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
/* Allocate the requests */
--
1.7.9.5
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