From: Alexandre Bailon <abailon@baylibre.com>
Date: Thu, 19 Nov 2015 11:44:46 +0000 (+0100)
Subject: greybus: loopback: fix invalid response size
X-Git-Tag: v4.14-rc1~2366^2~378^2~21^2~1034
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9864756be7542d3fe4e18297e0a45b5e2dec2f62;p=platform%2Fkernel%2Flinux-rpi.git

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
--- 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;
 			}