diff options
| author | Takashi Iwai <tiwai@suse.de> | 2025-11-27 07:19:59 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-11-27 07:19:59 +0100 |
| commit | d01a3aad7f2c183152dec02202aa1d23ee02556c (patch) | |
| tree | 62947b128848602f6c543e05dad2a078d2c117b2 /drivers/media/usb/uvc/uvc_driver.c | |
| parent | d041e5e748f926398ad96436a86667dea8b591e0 (diff) | |
| parent | 73b97d46dde64fa184d47865d4a532d818c3a007 (diff) | |
Merge tag 'asoc-fix-v6.18-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.18
A small pile of driver specific fixes that came in during the past few
weeks, none of them especially major.
Diffstat (limited to 'drivers/media/usb/uvc/uvc_driver.c')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_driver.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index fb6afb8e84f0..ee4f54d68349 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -167,13 +167,26 @@ static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id) { - struct uvc_streaming *stream; + struct uvc_streaming *stream, *last_stream; + unsigned int count = 0; list_for_each_entry(stream, &dev->streams, list) { + count += 1; + last_stream = stream; if (stream->header.bTerminalLink == id) return stream; } + /* + * If the streaming entity is referenced by an invalid ID, notify the + * user and use heuristics to guess the correct entity. + */ + if (count == 1 && id == UVC_INVALID_ENTITY_ID) { + dev_warn(&dev->intf->dev, + "UVC non compliance: Invalid USB header. The streaming entity has an invalid ID, guessing the correct one."); + return last_stream; + } + return NULL; } |