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 <vadimp@xxxxxxxxxxxx>
---
v10->v9:
Fixes added by Vadim:
- add this patch to the series;
---
drivers/platform/mellanox/mlxreg-hotplug.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/platform/mellanox/mlxreg-hotplug.c b/drivers/platform/mellanox/mlxreg-hotplug.c
index f841379..b0d7587 100644
--- a/drivers/platform/mellanox/mlxreg-hotplug.c
+++ b/drivers/platform/mellanox/mlxreg-hotplug.c
@@ -96,6 +96,14 @@ 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. 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",
--
2.1.4
