PCI: Use atomic_inc_return() rather than atomic_add_return()

No functional change; just use atomic_inc_return() rather than the
general-purpose atomic_add_return().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2013-02-11 16:47:01 -07:00
commit cc7ba39bab