[PATCH] Fix io ordering problems in e100

[Catalin(ux aka Dino) BOIE]

Hello!

Checking e100.c code against Documentation/io_ordering.txt I found the 
following problem:

spin_lock_irq...
write
spin-unlock
e100_write_flush

The attached patch fix the code like this:

spin_lock_irq...
write
e100_write_flush
spin-unlock

Please apply.

Thanks!

Signed-off-by: Catalin BOIE <catab at umbrella.ro>

---
Catalin(ux aka Dino) BOIE
catab at deuroconsult.ro
http://kernel.umbrella.ro/--- e100_sleep_in_atomic/drivers/net/e100.c     2005-03-02 09:38:33.000000000 
+0200
+++ linux-2.6/drivers/net/e100.c        2005-07-08 14:26:38.000000000 +0300
@@ -579,8 +579,8 @@ static inline void e100_enable_irq(struc
 
        spin_lock_irqsave(&nic->cmd_lock, flags);
        writeb(irq_mask_none, &nic->csr->scb.cmd_hi);
-       spin_unlock_irqrestore(&nic->cmd_lock, flags);
        e100_write_flush(nic);
+       spin_unlock_irqrestore(&nic->cmd_lock, flags);
 }
 
 static inline void e100_disable_irq(struct nic *nic)
@@ -589,8 +589,8 @@ static inline void e100_disable_irq(stru
 
        spin_lock_irqsave(&nic->cmd_lock, flags);
        writeb(irq_mask_all, &nic->csr->scb.cmd_hi);
-       spin_unlock_irqrestore(&nic->cmd_lock, flags);
        e100_write_flush(nic);
+       spin_unlock_irqrestore(&nic->cmd_lock, flags);
 }
 
 static void e100_hw_reset(struct nic *nic)
@@ -1256,8 +1256,8 @@ static void e100_watchdog(unsigned long 
        * interrupt mask bit and the SW Interrupt generation bit */
        spin_lock_irq(&nic->cmd_lock);
        writeb(readb(&nic->csr->scb.cmd_hi) | irq_sw_gen,&nic->csr->scb.cmd_hi);
-       spin_unlock_irq(&nic->cmd_lock);
        e100_write_flush(nic);
+       spin_unlock_irq(&nic->cmd_lock);
 
        e100_update_stats(nic);
        e100_adjust_adaptive_ifs(nic, cmd.speed, cmd.duplex);