shpchp_unconfigure_device() always returned 0, so there's no reason for a
return value. In addition, remove_board() checked the return value for
possible error which is unnecessary.
Convert shpchp_unconfigure_device() to a void function and remove the
return value check. This addresses the following Coccinelle warning:
drivers/pci/hotplug/shpchp_pci.c:66:5-7: Unneeded variable: "rc". Return "0" on line 86
Link: https://lore.kernel.org/r/20200521190457.1066600-1-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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