Bluetooth: bfusb: Fix error path on firmware load

When loading the usb-configuration we do not signal the end of configuration on
memory allocation error. This patch moves the memory allocation to the top so
every error path uses "goto error" now to correctly send the usb-ctrl message
when detecting some error.

This also replaces GFP_ATOMIC with GFP_KERNEL as we are allowed to sleep here.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 005919ab043c16bb4e699b4f58ee5a4fdbd94c6e..61b591470a90827280005b50b000907a7e7c2ac2 100644 (file)
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -568,22 +568,23 @@ static int bfusb_load_firmware(struct bfusb_data *data,
 
        BT_INFO("BlueFRITZ! USB loading firmware");
 
+       buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_KERNEL);
+       if (!buf) {
+               BT_ERR("Can't allocate memory chunk for firmware");
+               return -ENOMEM;
+       }
+
        pipe = usb_sndctrlpipe(data->udev, 0);
 
        if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
                                0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
                BT_ERR("Can't change to loading configuration");
+               kfree(buf);
                return -EBUSY;
        }
 
        data->udev->toggle[0] = data->udev->toggle[1] = 0;
 
-       buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC);
-       if (!buf) {
-               BT_ERR("Can't allocate memory chunk for firmware");
-               return -ENOMEM;
-       }
-
        pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
 
        while (count) {