ALSA: cs4231: Fix -Wformat-truncation warning for longname string

The filling of card->longname can be gracefully truncated, as it's
only informative.  Use scnprintf() and suppress the superfluous
compile warning with -Wformat-truncation.

Link: https://lore.kernel.org/r/20230915091313.5988-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c
index 1e89233..c87be4b 100644 (file)
--- a/sound/isa/cs423x/cs4231.c
+++ b/sound/isa/cs423x/cs4231.c
@@ -98,13 +98,13 @@ static int snd_cs4231_probe(struct device *dev, unsigned int n)
        strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
 
        if (dma2[n] < 0)
-               snprintf(card->longname, sizeof(card->longname),
-                        "%s at 0x%lx, irq %d, dma %d",
-                        chip->pcm->name, chip->port, irq[n], dma1[n]);
+               scnprintf(card->longname, sizeof(card->longname),
+                         "%s at 0x%lx, irq %d, dma %d",
+                         chip->pcm->name, chip->port, irq[n], dma1[n]);
        else
-               snprintf(card->longname, sizeof(card->longname),
-                        "%s at 0x%lx, irq %d, dma %d&%d",
-                        chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]);
+               scnprintf(card->longname, sizeof(card->longname),
+                         "%s at 0x%lx, irq %d, dma %d&%d",
+                         chip->pcm->name, chip->port, irq[n], dma1[n], dma2[n]);
 
        error = snd_wss_mixer(chip);
        if (error < 0)