e1000: check return value of _get_speed_and_duplex
We were not checking the return value of get_speed_and_duplex
properly, whih may contain an error value.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c
index 37eb351..784f950 100644
--- a/drivers/net/e1000/e1000_hw.c
+++ b/drivers/net/e1000/e1000_hw.c
@@ -2737,8 +2737,12 @@
*/
if(hw->tbi_compatibility_en) {
uint16_t speed, duplex;
- e1000_get_speed_and_duplex(hw, &speed, &duplex);
- if(speed != SPEED_1000) {
+ ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex);
+ if (ret_val) {
+ DEBUGOUT("Error getting link speed and duplex\n");
+ return ret_val;
+ }
+ if (speed != SPEED_1000) {
/* If link speed is not set to gigabit speed, we do not need
* to enable TBI compatibility.
*/