arch/blackfin: don't generate random mac in bfin_get_ether_addr()

Changed bfin_get_ether_addr() to return a state and to
set no random mac address if the board don't provide one.

Let the caller of bfin_get_ether_addr() set a random mac
address if the return value is not 0.

v2: don't set random mac in bfin_get_ether_addr()

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/blackfin/mach-bf537/boards/dnp5370.c b/arch/blackfin/mach-bf537/boards/dnp5370.c
index 11dadeb33d79..6f77bf708ec0 100644
--- a/arch/blackfin/mach-bf537/boards/dnp5370.c
+++ b/arch/blackfin/mach-bf537/boards/dnp5370.c
@@ -399,9 +399,10 @@ arch_initcall(dnp5370_init);
 /*
  * Currently the MAC address is saved in Flash by U-Boot
  */
-void bfin_get_ether_addr(char *addr)
+int bfin_get_ether_addr(char *addr)
 {
         *(u32 *)(&(addr[0])) = bfin_read32(FLASH_MAC);
         *(u16 *)(&(addr[4])) = bfin_read16(FLASH_MAC + 4);
+        return 0;
 }
 EXPORT_SYMBOL(bfin_get_ether_addr);