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Staging: pi433: check error after kthread_run()

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Error should be checked with IS_ERR after calling kthread_run()
instead of comparing the returned pointer to an int.

Found by sparse warning:

incompatible types for operation (<)
    left side has type struct task_struct *tx_task_struct
    right side has type int

Signed-off-by: Joseph Wright <rjosephwright@gmail.com>
Reviewed-by: Marcus Wolf <linux@wolf-entwicklungen.de>
Tested-by: Marcus Wolf <linux@wolf-entwicklungen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Joseph Wright 2017-07-16 14:48:58 +00:00 committed by Greg Kroah-Hartman
parent 7de77a3917
commit c7d42f3708
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/pi433/pi433_if.c
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@ -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;