linux-kernel - [PATCH -next] staging: pi433: fix error return code in pi433

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Date:   Tue, 28 Apr 2020 15:06:50 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kirill Smelkov <kirr@...edi.com>,
        Nishka Dasgupta <nishkadg.linux@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
CC:     Wei Yongjun <weiyongjun1@...wei.com>, <devel@...verdev.osuosl.org>,
        <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: [PATCH -next] staging: pi433: fix error return code in pi433_probe()

Fix to return negative error code -ENOMEM from cdev alloc failed error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 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 313d22f6210f..c8d0c63fdd1d 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -1230,6 +1230,7 @@ static int pi433_probe(struct spi_device *spi)
 	device->cdev = cdev_alloc();
 	if (!device->cdev) {
 		dev_dbg(device->dev, "allocation of cdev failed");
+		retval = -ENOMEM;
 		goto cdev_failed;
 	}
 	device->cdev->owner = THIS_MODULE;