ASoC: Intel: avs: Replace snprintf() with scnprintf()

snprintf() as defined by the C99 standard,returns the
number of characters that *would have been* written if
enough space were available.Use scnprintf() that returns
the actual number of characters written.

Link: https://github.com/KSPP/linux/issues/105
Signed-off-by: HariKrishna Sagala <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/intel/avs/debugfs.c

···
 	}
 
 	for (i = 0; i < num_desc; i++) {
-		ret = snprintf(buf + len, PAGE_SIZE - len,
-			       "Id: %#010x  Purpose: %d  Node id: %#x\n",
-			       desc[i].id.value, desc[i].purpose, desc[i].node_id.val);
-		if (ret < 0)
-			goto free_desc;
+		ret = scnprintf(buf + len, PAGE_SIZE - len,
+				"Id: %#010x  Purpose: %d  Node id: %#x\n",
+				desc[i].id.value, desc[i].purpose, desc[i].node_id.val);
 		len += ret;
 	}
 
 	ret = simple_read_from_buffer(to, count, ppos, buf, len);
-free_desc:
 	kfree(desc);
 exit:
 	kfree(buf);