ALSA: remove direct access of dev->bus_id in sound/isa/*

Removed the direct accesses of dev->bus_id in sound/isa/* by replacement
with dev_err() or dev_warn() functions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index 91f9c15..019c940 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -488,19 +488,19 @@
 		return 0;
 
 	if (port[dev] == SNDRV_AUTO_PORT) {
-		snd_printk(KERN_ERR "%s: please specify port\n", pdev->bus_id);
+		dev_err(pdev, "please specify port\n");
 		return 0;
 	}
 	if (cport[dev] == SNDRV_AUTO_PORT) {
-		snd_printk(KERN_ERR "%s: please specify cport\n", pdev->bus_id);
+		dev_err(pdev, "please specify cport\n");
 		return 0;
 	}
 	if (irq[dev] == SNDRV_AUTO_IRQ) {
-		snd_printk(KERN_ERR "%s: please specify irq\n", pdev->bus_id);
+		dev_err(pdev, "please specify irq\n");
 		return 0;
 	}
 	if (dma1[dev] == SNDRV_AUTO_DMA) {
-		snd_printk(KERN_ERR "%s: please specify dma1\n", pdev->bus_id);
+		dev_err(pdev, "please specify dma1\n");
 		return 0;
 	}
 	return 1;