greybus: loopback: return the right error value

If an error occurs starting up the loopback thread, the error code
is not extracted properly.  Fix that.

Signed-off-by: Alex Elder <elder@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 20aabeb..85e2fe7 100644 (file)
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -362,7 +362,7 @@ static int gb_loopback_connection_init(struct gb_connection *connection)
        gb_loopback_reset_stats(gb);
        gb->task = kthread_run(gb_loopback_fn, gb, "gb_loopback");
        if (IS_ERR(gb->task)) {
-               retval = IS_ERR(gb->task);
+               retval = PTR_ERR(gb->task);
                goto error;
        }