[PATCH -next] staging: pi433: fix error return code in pi433_probe()

[Wei Yongjun]

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@xxxxxxxxxx>
---
 drivers/staging/pi433/pi433_if.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 293602d..d4bfac1 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -1235,6 +1235,7 @@ 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;
 	}