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authorThomas Zimmermann <tzimmermann@suse.de>2024-02-07 13:01:19 +0100
committerThomas Zimmermann <tzimmermann@suse.de>2024-02-07 13:02:20 +0100
commit0e85f1ae4ac6dae238b0f35232d1aa52e1b6943f (patch)
tree75b387bc359637c15b90ababb1ff073ca68b5bd8 /sound/usb/format.c
parent2c8ba564a42c7418a726367c73d7c88454848fdc (diff)
parentf8e4806e0dfa8796b3d7076a7fe054455a59c38b (diff)
Merge drm/drm-next into drm-misc-next
Backmerging to update drm-misc-next to the state of v6.8-rc3. Also fixes a build problem with xe. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'sound/usb/format.c')
-rw-r--r--sound/usb/format.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/usb/format.c b/sound/usb/format.c
index ab5fed9f55b6..3b45d0ee7693 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -470,9 +470,11 @@ static int validate_sample_rate_table_v2v3(struct snd_usb_audio *chip,
int clock)
{
struct usb_device *dev = chip->dev;
+ struct usb_host_interface *alts;
unsigned int *table;
unsigned int nr_rates;
int i, err;
+ u32 bmControls;
/* performing the rate verification may lead to unexpected USB bus
* behavior afterwards by some unknown reason. Do this only for the
@@ -481,6 +483,24 @@ static int validate_sample_rate_table_v2v3(struct snd_usb_audio *chip,
if (!(chip->quirk_flags & QUIRK_FLAG_VALIDATE_RATES))
return 0; /* don't perform the validation as default */
+ alts = snd_usb_get_host_interface(chip, fp->iface, fp->altsetting);
+ if (!alts)
+ return 0;
+
+ if (fp->protocol == UAC_VERSION_3) {
+ struct uac3_as_header_descriptor *as = snd_usb_find_csint_desc(
+ alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
+ bmControls = le32_to_cpu(as->bmControls);
+ } else {
+ struct uac2_as_header_descriptor *as = snd_usb_find_csint_desc(
+ alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
+ bmControls = as->bmControls;
+ }
+
+ if (!uac_v2v3_control_is_readable(bmControls,
+ UAC2_AS_VAL_ALT_SETTINGS))
+ return 0;
+
table = kcalloc(fp->nr_rates, sizeof(*table), GFP_KERNEL);
if (!table)
return -ENOMEM;