smsc911x: fix smsc911x_reg_read compiler warning

if this code path is ever hit, the platform_data struct isn't properly
configured with a bus width flag so the device won't work (hence the
BUG()).

This patch adds a dummy return statement to eliminate this compiler
warning:

drivers/net/smsc911x.c: In function 'smsc911x_reg_read':
drivers/net/smsc911x.c:148: warning: control reaches end of non-void function

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 020c5830c37..fd3d2a7a1a2 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -144,6 +144,7 @@ static inline u32 smsc911x_reg_read(struct smsc911x_data *pdata, u32 reg)
         }
 
         BUG();
+        return 0;
 }
 
 static inline void smsc911x_reg_write(struct smsc911x_data *pdata, u32 reg,