ds1wm: report bus reset error

The patch replaces dev_dbg() by dev_err(), so the user could actually see the
error, instead of wondering why w1 doesn't work.  The root cause of the bus
reset error isn't yet debugged though, but this sometimes happens on iPaq
H5555.

And while I'm at it, some cosmetic cleanups also made (few lines were using
spaces instead of tabs).

Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/w1/masters/ds1wm.c

@@ -103,12 +103,12 @@ struct ds1wm_data {
 static inline void ds1wm_write_register(struct ds1wm_data *ds1wm_data, u32 reg,
 					u8 val)
 {
-        __raw_writeb(val, ds1wm_data->map + (reg << ds1wm_data->bus_shift));
+	__raw_writeb(val, ds1wm_data->map + (reg << ds1wm_data->bus_shift));
 }
 
 static inline u8 ds1wm_read_register(struct ds1wm_data *ds1wm_data, u32 reg)
 {
-        return __raw_readb(ds1wm_data->map + (reg << ds1wm_data->bus_shift));
+	return __raw_readb(ds1wm_data->map + (reg << ds1wm_data->bus_shift));
 }
 
 
@@ -150,8 +150,8 @@ static int ds1wm_reset(struct ds1wm_data *ds1wm_data)
 	timeleft = wait_for_completion_timeout(&reset_done, DS1WM_TIMEOUT);
 	ds1wm_data->reset_complete = NULL;
 	if (!timeleft) {
-                dev_dbg(&ds1wm_data->pdev->dev, "reset failed\n");
-                return 1;
+		dev_err(&ds1wm_data->pdev->dev, "reset failed\n");
+		return 1;
 	}
 
 	/* Wait for the end of the reset. According to the specs, the time
@@ -168,11 +168,11 @@ static int ds1wm_reset(struct ds1wm_data *ds1wm_data)
 		(ds1wm_data->active_high ? DS1WM_INTEN_IAS : 0));
 
 	if (!ds1wm_data->slave_present) {
-                dev_dbg(&ds1wm_data->pdev->dev, "reset: no devices found\n");
-                return 1;
-        }
+		dev_dbg(&ds1wm_data->pdev->dev, "reset: no devices found\n");
+		return 1;
+	}
 
-        return 0;
+	return 0;
 }
 
 static int ds1wm_write(struct ds1wm_data *ds1wm_data, u8 data)
@@ -335,7 +335,7 @@ static int ds1wm_probe(struct platform_device *pdev)
 	if (!pdev)
 		return -ENODEV;
 
-	ds1wm_data = kzalloc(sizeof (*ds1wm_data), GFP_KERNEL);
+	ds1wm_data = kzalloc(sizeof(*ds1wm_data), GFP_KERNEL);
 	if (!ds1wm_data)
 		return -ENOMEM;