PCI: ibmphp: Use common error handling code in unconfigure_boot_device()

Combine two error paths that emit the same message and return the same
error code.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/hotplug/ibmphp_pci.c

@@ -1267,20 +1267,19 @@ static int unconfigure_boot_device(u8 busno, u8 device, u8 function)
 			size = size & 0xFFFFFFFC;
 			size = ~size + 1;
 			end_address = start_address + size - 1;
-			if (ibmphp_find_resource(bus, start_address, &io, IO) < 0) {
-				err("cannot find corresponding IO resource to remove\n");
-				return -EIO;
-			}
+			if (ibmphp_find_resource(bus, start_address, &io, IO))
+				goto report_search_failure;
+
 			debug("io->start = %x\n", io->start);
 			temp_end = io->end;
 			start_address = io->end + 1;
 			ibmphp_remove_resource(io);
 			/* This is needed b/c of the old I/O restrictions in the BIOS */
 			while (temp_end < end_address) {
-				if (ibmphp_find_resource(bus, start_address, &io, IO) < 0) {
-					err("cannot find corresponding IO resource to remove\n");
-					return -EIO;
-				}
+				if (ibmphp_find_resource(bus, start_address,
+							 &io, IO))
+					goto report_search_failure;
+
 				debug("io->start = %x\n", io->start);
 				temp_end = io->end;
 				start_address = io->end + 1;
@@ -1327,6 +1326,10 @@ static int unconfigure_boot_device(u8 busno, u8 device, u8 function)
 	}	/* end of for */
 
 	return 0;
+
+report_search_failure:
+	err("cannot find corresponding IO resource to remove\n");
+	return -EIO;
 }
 
 static int unconfigure_boot_bridge(u8 busno, u8 device, u8 function)