Blackfin Ethernet MAC driver: fix bug Report returned -ENOMEM upwards (in case L1/uncached memory alloc fails)

Bug tracker: https://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3399

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index 9a08d656f1ce..2bb97d464689 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -798,6 +798,7 @@ static void bf537mac_shutdown(struct net_device *dev)
  */
 static int bf537mac_open(struct net_device *dev)
 {
+        int retval;
         pr_debug("%s: %s\n", dev->name, __FUNCTION__);
 
         /*
@@ -811,7 +812,10 @@ static int bf537mac_open(struct net_device *dev)
         }
 
         /* initial rx and tx list */
-        desc_list_init();
+        retval = desc_list_init();
+
+        if (retval)
+                return retval;
 
         bf537mac_setphy(dev);
         setup_system_regs(dev);