From 8ce8668bfb64f2973cc1276c54619aceede6498a Mon Sep 17 00:00:00 2001 From: Evgeny Novikov Date: Tue, 23 Jun 2020 11:29:59 +0300 Subject: staging: kpc2000: kpc_dma: set error code in probe If device_create() fails during probing the device, kpc_dma_probe() does not set the error code and returns 0. This can result in various bad issues later. The patch sets the error code on the corresponding error handling path. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Evgeny Novikov Link: https://lore.kernel.org/r/20200623082959.14951-1-novikov@ispras.ru Signed-off-by: Greg Kroah-Hartman --- drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/staging/kpc2000/kpc_dma') diff --git a/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.c b/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.c index c3b30551e0ca..624d47bae4d1 100644 --- a/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.c +++ b/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.c @@ -140,6 +140,7 @@ int kpc_dma_probe(struct platform_device *pldev) dev = MKDEV(assigned_major_num, pldev->id); ldev->kpc_dma_dev = device_create(kpc_dma_class, &pldev->dev, dev, ldev, "kpc_dma%d", pldev->id); if (IS_ERR(ldev->kpc_dma_dev)) { + rv = PTR_ERR(ldev->kpc_dma_dev); dev_err(&ldev->pldev->dev, "%s: device_create failed: %d\n", __func__, rv); goto err_kfree; } -- cgit v1.2.3-59-g8ed1b