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staging: pi433: add missing call to cdev_del()

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If cdev_add() fails, cdev_del() should be called.
Add the missing cdev_del() call as pointed out by
Dan Carpenter.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Straube 2018-11-26 19:18:20 +01:00 committed by Greg Kroah-Hartman
parent d4d6b086df
commit e086f61479
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/pi433/pi433_if.c
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@ -1254,7 +1254,7 @@ static int pi433_probe(struct spi_device *spi)
retval = cdev_add(device->cdev, device->devt, 1);
if (retval) {
dev_dbg(device->dev, "register of cdev failed");
goto cdev_failed;
goto del_cdev;
}
/* spi setup */
@ -1262,6 +1262,8 @@ static int pi433_probe(struct spi_device *spi)
return 0;
del_cdev:
cdev_del(device->cdev);
cdev_failed:
kthread_stop(device->tx_task_struct);
send_thread_failed: