1 files changed, 17 insertions, 25 deletions

diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index f45779b7690..bfa243d5a8f 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -45,12 +45,6 @@ static int base[MAX_DEVICES] = { 0x820, 0x840 };
 module_param_array(base, int, NULL, 0);
 MODULE_PARM_DESC(base, "Base addresses for the ACCESS.bus controllers");
 
-#ifdef DEBUG
-#define DBG(x...) printk(KERN_DEBUG NAME ": " x)
-#else
-#define DBG(x...)
-#endif
-
 /* The hardware supports interrupt driven mode too, but I haven't
    implemented that. */
 #define POLLED_MODE 1
@@ -119,8 +113,8 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
 {
         const char *errmsg;
 
-        DBG("state %s, status = 0x%02x\n",
-            scx200_acb_state_name[iface->state], status);
+        dev_dbg(&iface->adapter.dev, "state %s, status = 0x%02x\n",
+                scx200_acb_state_name[iface->state], status);
 
         if (status & ACBST_BER) {
                 errmsg = "bus error";
@@ -209,8 +203,8 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
         return;
 
  negack:
-        DBG("negative acknowledge in state %s\n",
-            scx200_acb_state_name[iface->state]);
+        dev_dbg(&iface->adapter.dev, "negative ack in state %s\n",
+                scx200_acb_state_name[iface->state]);
 
         iface->state = state_idle;
         iface->result = -ENXIO;
@@ -326,19 +320,15 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
                 return -EINVAL;
         }
 
-        DBG("size=%d, address=0x%x, command=0x%x, len=%d, read=%d\n",
-            size, address, command, len, rw == I2C_SMBUS_READ);
+        dev_dbg(&adapter->dev,
+                "size=%d, address=0x%x, command=0x%x, len=%d, read=%d\n",
+                size, address, command, len, rw);
 
         if (!len && rw == I2C_SMBUS_READ) {
-                dev_warn(&adapter->dev, "zero length read\n");
+                dev_dbg(&adapter->dev, "zero length read\n");
                 return -EINVAL;
         }
 
-        if (len && !buffer) {
-                dev_warn(&adapter->dev, "nonzero length but no buffer\n");
-                return -EFAULT;
-        }
-
         down(&iface->sem);
 
         iface->address_byte = address<<1;
@@ -375,7 +365,7 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
                 data->word = le16_to_cpu(cur_word);
 
 #ifdef DEBUG
-        DBG(": transfer done, result: %d", rc);
+        dev_dbg(&adapter->dev, "transfer done, result: %d", rc);
         if (buffer) {
                 int i;
                 printk(" data:");
@@ -412,7 +402,7 @@ static int scx200_acb_probe(struct scx200_acb_iface *iface)
         outb(0x70, ACBCTL2);
 
         if (inb(ACBCTL2) != 0x70) {
-                DBG("ACBCTL2 readback failed\n");
+                pr_debug(NAME ": ACBCTL2 readback failed\n");
                 return -ENXIO;
         }
 
@@ -420,7 +410,8 @@ static int scx200_acb_probe(struct scx200_acb_iface *iface)
 
         val = inb(ACBCTL1);
         if (val) {
-                DBG("disabled, but ACBCTL1=0x%02x\n", val);
+                pr_debug(NAME ": disabled, but ACBCTL1=0x%02x\n",
+                        val);
                 return -ENXIO;
         }
 
@@ -430,7 +421,8 @@ static int scx200_acb_probe(struct scx200_acb_iface *iface)
 
         val = inb(ACBCTL1);
         if ((val & ACBCTL1_NMINTE) != ACBCTL1_NMINTE) {
-                DBG("enabled, but NMINTE won't be set, ACBCTL1=0x%02x\n", val);
+                pr_debug(NAME ": enabled, but NMINTE won't be set, "
+                         "ACBCTL1=0x%02x\n", val);
                 return -ENXIO;
         }
 
@@ -464,7 +456,7 @@ static int  __init scx200_acb_create(int base, int index)
         snprintf(description, sizeof(description),
                  "NatSemi SCx200 ACCESS.bus [%s]", adapter->name);
         if (request_region(base, 8, description) == 0) {
-                dev_err(&adapter->dev, "can't allocate io 0x%x-0x%x\n",
+                printk(KERN_ERR NAME ": can't allocate io 0x%x-0x%x\n",
                         base, base + 8-1);
                 rc = -EBUSY;
                 goto errout;
@@ -473,14 +465,14 @@ static int  __init scx200_acb_create(int base, int index)
 
         rc = scx200_acb_probe(iface);
         if (rc) {
-                dev_warn(&adapter->dev, "probe failed\n");
+                printk(KERN_WARNING NAME ": probe failed\n");
                 goto errout;
         }
 
         scx200_acb_reset(iface);
 
         if (i2c_add_adapter(adapter) < 0) {
-                dev_err(&adapter->dev, "failed to register\n");
+                printk(KERN_ERR NAME ": failed to register\n");
                 rc = -ENODEV;
                 goto errout;
         }