i2c: i801: Fix using mux_pdev before it's set

JIRA: https://issues.redhat.com/browse/RHEL-47426

commit 09f0290
Author: Heiner Kallweit <hkallweit1@gmail.com>
Date:   Sun Mar 3 11:45:22 2024 +0100

    i2c: i801: Fix using mux_pdev before it's set

    i801_probe_optional_slaves() is called before i801_add_mux().
    This results in mux_pdev being checked before it's set by
    i801_add_mux(). Fix this by changing the order of the calls.
    I consider this safe as I see no dependencies.

    Fixes: 80e56b8 ("i2c: i801: Simplify class-based client device instantiation")
    Cc: stable@vger.kernel.org
    Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
    Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
    Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

Signed-off-by: David Arcari <darcari@redhat.com>

Author: darcari

drivers/i2c/busses/i2c-i801.c

@@ -1756,9 +1756,9 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
 	i801_enable_host_notify(&priv->adapter);
 
-	i801_probe_optional_slaves(priv);
 	/* We ignore errors - multiplexing is optional */
 	i801_add_mux(priv);
+	i801_probe_optional_slaves(priv);
 
 	pci_set_drvdata(dev, priv);