ALSA: echoaudio: cleanup of unnecessary messages

commit "b5b4a41b392960010fccf1f9ccf8334d612bd450" was dereferencing
chip after it has been freed. This patch fixes that and at the same
time removes some debugging messages, which are unnecessary, as they
are just printing information about entry and exit from a function,
and which switch-case it is executing.
we can easily get from ftrace the information about the entry and exit
from a function.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/echoaudio/indigodj_dsp.c

@@ -38,7 +38,6 @@ static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
 {
 	int err;
 
-	dev_dbg(chip->card->dev, "init_hw() - Indigo DJ\n");
 	if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO_DJ))
 		return -ENODEV;
 
@@ -61,7 +60,6 @@ static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
 		return err;
 	chip->bad_board = FALSE;
 
-	dev_dbg(chip->card->dev, "init_hw done\n");
 	return err;
 }