Merge tag 'sound-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "Many updates in this development cycle are found in ASoC where it got
  a wide range of changes for the continued refactoring.

  Some highlights are below.

  ASoC:

   - Continued refactoring work by Morimoto-san toward the full
     componentization; the changes are seen allover the places

   - Support for force disconnecting muxes in DAPM

   - Continued development of ASoC Intel SOF stuff

   - New drivers for Cirrus Logic CS47L35, CS47L85 and CS47L90, Conexant
     CX2072X, Realtek RT1011 and RT1308

  HD-audio:

   - More fixes and adjustments for ASoC SOF HD-audio

   - Fix for resume problem on some Realtek codecs

  USB-audio:

   - A few fixes for the issues reported by syzbot USB fuzzer

   - Fix for UAC2 extension unit parser

   - Quirks for Line6 Helix, Emgaic Unitor 8

  FireWire:

   - Lots of code refactoring and fixes in most of its components"

* tag 'sound-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (626 commits)
  ALSA: firewire-lib: code refactoring for local variables
  ALSA: firewire-lib: code refactoring for post operation to data block counter
  ALSA: firewire-lib: code refactoring for error path of parser for CIP header
  ALSA: firewire-lib: fix different data block counter between probed event and transferred isochronous packet
  ALSA: firewire-lib: fix initial value of data block count for IR context without CIP_DBC_IS_END_EVENT
  ALSA: firewire-lib/fireface: fix initial value of data block counter for IR context with CIP_NO_HEADER
  ALSA: firewire-lib: fix invalid length of rx packet payload for tracepoint events
  ALSA: usb-audio: fix Line6 Helix audio format rates
  firewire-motu: fix wrong reference count for stream functionality at error path of rawmidi interface
  ALSA: firewire-digi00x: fix wrong reference count for stream functionality at error path of rawmidi interface
  ALSA: dice: fix wrong reference count for stream functionality at error path of rawmidi interface
  ALSA: oxfw: fix wrong reference count for stream functionality at error path of rawmidi interface
  ALSA: fireworks: fix wrong reference count for stream functionality at error path of rawmidi interface
  ALSA: bebob: fix wrong reference count for stream functionality at error path of rawmidi interface
  ASoC: SOF: Intel: implement runtime idle for CNL/APL
  ASoC: SOF: add runtime idle callback
  ASoC: hdac_hdmi: report codec link up/down status to bus
  ASoC: SOF: debug: fix possible memory leak in sof_dfsentry_write()
  ASoC: sunxi: sun50i-codec-analog: Add earpiece
  ASoC: rt5665: remove redundant assignment to variable idx
  ...

1 files changed, 4 insertions, 6 deletions

diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c
index 628fae552442..952a19091c58 100644
--- a/sound/soc/sof/loader.c
+++ b/sound/soc/sof/loader.c
@@ -19,15 +19,13 @@ static int get_ext_windows(struct snd_sof_dev *sdev,
 {
 	struct sof_ipc_window *w =
 		container_of(ext_hdr, struct sof_ipc_window, ext_hdr);
-	size_t size;
 
 	if (w->num_windows == 0 || w->num_windows > SOF_IPC_MAX_ELEMS)
 		return -EINVAL;
 
-	size = sizeof(*w) + sizeof(struct sof_ipc_window_elem) * w->num_windows;
-
 	/* keep a local copy of the data */
-	sdev->info_window = kmemdup(w, size, GFP_KERNEL);
+	sdev->info_window = kmemdup(w, struct_size(w, window, w->num_windows),
+				    GFP_KERNEL);
 	if (!sdev->info_window)
 		return -ENOMEM;
 
@@ -337,11 +335,11 @@ int snd_sof_run_firmware(struct snd_sof_dev *sdev)
 	init_waitqueue_head(&sdev->boot_wait);
 	sdev->boot_complete = false;
 
-	/* create fw_version debugfs to store boot version info */
+	/* create read-only fw_version debugfs to store boot version info */
 	if (sdev->first_boot) {
 		ret = snd_sof_debugfs_buf_item(sdev, &sdev->fw_version,
 					       sizeof(sdev->fw_version),
-					       "fw_version");
+					       "fw_version", 0444);
 		/* errors are only due to memory allocation, not debugfs */
 		if (ret < 0) {
 			dev_err(sdev->dev, "error: snd_sof_debugfs_buf_item failed\n");