From 7805fa8d78d0ea8c9c5a6603960e8f23901c7f17 Mon Sep 17 00:00:00 2001 From: Vadim Pasternak Date: Fri, 26 Jan 2018 19:03:45 +0000 Subject: platform/mellanox: mlxreg-hotplug: Add check for negative adapter number Verify before creation of hotplug device if the associated adapter number is negative. It could be in case hotplug event is not associated with hotplug device. Signed-off-by: Vadim Pasternak Signed-off-by: Darren Hart (VMware) --- drivers/platform/mellanox/mlxreg-hotplug.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/platform/mellanox') diff --git a/drivers/platform/mellanox/mlxreg-hotplug.c b/drivers/platform/mellanox/mlxreg-hotplug.c index bcb564fd9f04..0dfa1ca0d05b 100644 --- a/drivers/platform/mellanox/mlxreg-hotplug.c +++ b/drivers/platform/mellanox/mlxreg-hotplug.c @@ -96,6 +96,13 @@ struct mlxreg_hotplug_priv_data { static int mlxreg_hotplug_device_create(struct device *dev, struct mlxreg_core_data *data) { + /* + * Return if adapter number is negative. It could be in case hotplug + * event is not associated with hotplug device. + */ + if (data->hpdev.nr < 0) + return 0; + data->hpdev.adapter = i2c_get_adapter(data->hpdev.nr); if (!data->hpdev.adapter) { dev_err(dev, "Failed to get adapter for bus %d\n", -- cgit v1.2.3