brcm47xx: fix memory leak, backport from the mainline kernel

SVN-Revision: 31143

target/linux/brcm47xx/patches-3.2/235-bcma-fix-memleak.patch

@@ -0,0 +1,29 @@
+--- a/drivers/bcma/scan.c
++++ b/drivers/bcma/scan.c
+@@ -458,15 +458,18 @@ int bcma_bus_scan(struct bcma_bus *bus)
+ 		core->bus = bus;
+ 
+ 		err = bcma_get_next_core(bus, &eromptr, NULL, core_num, core);
+-		if (err == -ENODEV) {
+-			core_num++;
+-			continue;
+-		} else if (err == -ENXIO)
+-			continue;
+-		else if (err == -ESPIPE)
+-			break;
+-		else if (err < 0)
++		if (err < 0) {
++			kfree(core);
++			if (err == -ENODEV) {
++				core_num++;
++				continue;
++			} else if (err == -ENXIO) {
++				continue;
++			} else if (err == -ESPIPE) {
++				break;
++			}
+ 			return err;
++		}
+ 
+ 		core->core_index = core_num++;
+ 		bus->nr_cores++;