diff options
author | Yang Yingliang <yangyingliang@huawei.com> | 2023-12-01 06:30:56 +0300 |
---|---|---|
committer | Sasha Levin <sashal@kernel.org> | 2024-03-27 01:17:06 +0300 |
commit | 913421f9f7fd8324dcc41753d0f28b52e177ef04 (patch) | |
tree | 3800512d70fc38fae638021f229ed080c9aa10f4 /drivers/pci | |
parent | 31d441f65c102e11c4a6b93633068d421507037e (diff) | |
download | linux-913421f9f7fd8324dcc41753d0f28b52e177ef04.tar.xz |
NTB: fix possible name leak in ntb_register_device()
[ Upstream commit aebfdfe39b9327a3077d0df8db3beb3160c9bdd0 ]
If device_register() fails in ntb_register_device(), the device name
allocated by dev_set_name() should be freed. As per the comment in
device_register(), callers should use put_device() to give up the
reference in the error path. So fix this by calling put_device() in the
error path so that the name can be freed in kobject_cleanup().
As a result of this, put_device() in the error path of
ntb_register_device() is removed and the actual error is returned.
Fixes: a1bd3baeb2f1 ("NTB: Add NTB hardware abstraction layer")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20231201033057.1399131-1-yangyingliang@huaweicloud.com
[mani: reworded commit message]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-vntb.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index e75a2af77328..5b84821c0d60 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -1275,15 +1275,11 @@ static int pci_vntb_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = ntb_register_device(&ndev->ntb); if (ret) { dev_err(dev, "Failed to register NTB device\n"); - goto err_register_dev; + return ret; } dev_dbg(dev, "PCI Virtual NTB driver loaded\n"); return 0; - -err_register_dev: - put_device(&ndev->ntb.dev); - return -EINVAL; } static struct pci_device_id pci_vntb_table[] = { |