staging: pi433: fix error return code in pi433_probe()

Fix to return a negative error code from the kthread_run() error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 511b2b5317322663be119bf4d9af4b00ccf8f3aa..c85a805a1243169a6b8478240be85855a5ade4c8 100644 (file)
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -1249,6 +1249,7 @@ static int pi433_probe(struct spi_device *spi)
                                             device->minor);
        if (IS_ERR(device->tx_task_struct)) {
                dev_dbg(device->dev, "start of send thread failed");
+               retval = PTR_ERR(device->tx_task_struct);
                goto send_thread_failed;
        }