correct pci_get_device changes
Commits 881a8c120acf7ec09c90289e2996b7c70f51e996 and
efe1ec27837d6639eae82e1f5876910ba6433c3f corrects pci device matching in
only one way; it no longer oopses/crashes, despite hotplug is not solved in
these changes.
Whenever pci_find_device -> pci_get_device change is performed, also
pci_dev_get and pci_dev_put should be in most cases called to properly
handle hotplug. This patch does exactly this thing -- increase refcount to
let kernel know, that we are using this piece of HW just now.
It affects moxa and rio char drivers.
Cc: <R.E.Wolff@xxxxxxxxxxxx>
Cc: Amit Gud <gud@xxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>