Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / net / ethernet / smsc / smc91x.c

diff --git a/kernel/drivers/net/ethernet/smsc/smc91x.c b/kernel/drivers/net/ethernet/smsc/smc91x.c
index 0e2fc1a..23a0388 100644 (file)
--- a/kernel/drivers/net/ethernet/smsc/smc91x.c
+++ b/kernel/drivers/net/ethernet/smsc/smc91x.c
@@ -540,7 +540,7 @@ static inline void  smc_rcv(struct net_device *dev)
 #define smc_special_lock(lock, flags)          spin_lock_irqsave(lock, flags)
 #define smc_special_unlock(lock, flags)        spin_unlock_irqrestore(lock, flags)
 #else
-#define smc_special_trylock(lock, flags)       (flags == flags)
+#define smc_special_trylock(lock, flags)       ((void)flags, true)
 #define smc_special_lock(lock, flags)          do { flags = 0; } while (0)
 #define smc_special_unlock(lock, flags)        do { flags = 0; } while (0)
 #endif
@@ -2269,6 +2269,13 @@ static int smc_drv_probe(struct platform_device *pdev)
        if (pd) {
                memcpy(&lp->cfg, pd, sizeof(lp->cfg));
                lp->io_shift = SMC91X_IO_SHIFT(lp->cfg.flags);
+
+               if (!SMC_8BIT(lp) && !SMC_16BIT(lp)) {
+                       dev_err(&pdev->dev,
+                               "at least one of 8-bit or 16-bit access support is required.\n");
+                       ret = -ENXIO;
+                       goto out_free_netdev;
+               }
        }
 
 #if IS_BUILTIN(CONFIG_OF)