ALSA: HDSP: check for io box before uploading firmware

currently the hdsp driver tries to upload the firmware, even if the
io box is not connected. this patch adds a check for the io box
before trying to upload the firmware.
thus instead of messages complaining about the fifo status and firmware
loading failure, the driver gives a message that no multiface or
digiface is connected.

[A minor coding-style fix by tiwai]

Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 5 insertions, 1 deletions

diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index d723543beadd..d680114b3e44 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -5045,6 +5045,10 @@ static int __devinit snd_hdsp_create(struct snd_card *card,
                 /* we wait 2 seconds to let freshly inserted cardbus cards do their hardware init */
                 ssleep(2);
 
+                err = hdsp_check_for_iobox(hdsp);
+                if (err < 0)
+                        return err;
+
                 if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
 #ifdef HDSP_FW_LOADER
                         if ((err = hdsp_request_fw_loader(hdsp)) < 0)
@@ -5057,7 +5061,7 @@ static int __devinit snd_hdsp_create(struct snd_card *card,
                                 /* init is complete, we return */
                                 return 0;
 #endif
-                        /* no iobox connected, we defer initialization */
+                        /* we defer initialization */
                         snd_printk(KERN_INFO "Hammerfall-DSP: card initialization pending : waiting for firmware\n");
                         if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
                                 return err;