[U-Boot] [PATCH V2 2/4] compulab: eeprom: propagate error value in read_mac_addr()

[Nikita Kiryanov]

cl_eeprom_read_mac_addr() doesn't differentiate between success case and
inability to access eeprom. Fix this by propagating the return value of
cl_eeprom_setup().

Cc: Stefano Babic <sbabic at denx.de>
Cc: Igor Grinberg <grinberg at compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita at compulab.co.il>
---
Changes in V2:
	- New patch

 board/compulab/common/eeprom.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/board/compulab/common/eeprom.c b/board/compulab/common/eeprom.c
index aaacd2e..9f18a3d 100644
--- a/board/compulab/common/eeprom.c
+++ b/board/compulab/common/eeprom.c
@@ -105,9 +105,11 @@ void get_board_serial(struct tag_serialnr *serialnr)
 int cl_eeprom_read_mac_addr(uchar *buf, uint eeprom_bus)
 {
 	uint offset;
+	int err;
 
-	if (cl_eeprom_setup(eeprom_bus))
-		return 0;
+	err = cl_eeprom_setup(eeprom_bus);
+	if (err)
+		return err;
 
 	offset = (cl_eeprom_layout != LAYOUT_LEGACY) ?
 			MAC_ADDR_OFFSET : MAC_ADDR_OFFSET_LEGACY;
-- 
1.9.1