a7y18lte-ubports/android_kernel_samsung_universal7885
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xen: xenbus: use put_device() instead of kfree()

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[ Upstream commit 351b2bccede1cb673ec7957b35ea997ea24c8884 ]

Never directly free @dev after calling device_register(), even
if it returned an error! Always use put_device() to give up the
reference initialized.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arvind Yadav 2018-03-06 15:40:37 +05:30 committed by Greg Kroah-Hartman
parent bfffc2c3f5
commit 8c9c753039
1 changed files with 4 additions and 1 deletions
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5
drivers/xen/xenbus/xenbus_probe.c
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@ -470,8 +470,11 @@ int xenbus_probe_node(struct xen_bus_type *bus,
/* Register with generic device framework. */
err = device_register(&xendev->dev);
if (err)
if (err) {
put_device(&xendev->dev);
xendev = NULL;
goto fail;
}
return 0;
fail: