greybus: loopback: fix invalid response size

The size of timestamps is not taken into account, which makes the
loopback driver in the firmware drop invalid packages.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index 9a44dcc..ec68247 100644 (file)
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -534,8 +534,8 @@ static int gb_loopback_request_recv(u8 type, struct gb_operation *operation)
                }
 
                if (len) {
-                       if (!gb_operation_response_alloc(operation, len,
-                                                        GFP_KERNEL)) {
+                       if (!gb_operation_response_alloc(operation,
+                                       len + sizeof(*response), GFP_KERNEL)) {
                                dev_err(dev, "error allocating response\n");
                                return -ENOMEM;
                        }