linux-kernel - [PATCH] staging: pi433: use IS_ERR to check kthread

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Message-Id: <20170722102734.653-1-paolocretaro@gmail.com>
Date:   Sat, 22 Jul 2017 12:27:34 +0200
From:   Paolo Cretaro <paolocretaro@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     linux@...f-Entwicklungen.de, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org,
        Paolo Cretaro <paolocretaro@...il.com>
Subject: [PATCH] staging: pi433: use IS_ERR to check kthread_run return value

Fix compiler warning: ordered comparison of pointer with integer zero

Signed-off-by: Paolo Cretaro <paolocretaro@...il.com>
---
 drivers/staging/pi433/pi433_if.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 1bc478a7f49e..79bd19123239 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -1152,7 +1152,7 @@ static int pi433_probe(struct spi_device *spi)
 	device->tx_task_struct = kthread_run(pi433_tx_thread,
 					     device,
 					     "pi433_tx_task");
-	if (device->tx_task_struct < 0)
+	if (IS_ERR(device->tx_task_struct))
 	{
 		dev_dbg(device->dev, "start of send thread failed");
 		goto send_thread_failed;
-- 
2.13.3