greybus: loopback: Print error on data mismatch

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odnoghue@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 39ad4141ba8c2d4dae22e1d0897dc3e16210030b..3263d8351aa307fb077e818d10964b816c83f907 100644 (file)
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -287,8 +287,10 @@ static int gb_loopback_transfer(struct gb_loopback *gb, u32 len)
        if (retval)
                goto gb_error;
 
-       if (memcmp(request->data, response->data, len))
+       if (memcmp(request->data, response->data, len)) {
+               pr_info("%s: Loopback Data doesn't match\n", __func__);
                retval = -EREMOTEIO;
+       }
 
 gb_error:
        kfree(request);