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| author | Will Porter <mrwillporter@gmail.com> | 2026-08-27 18:21:40 -0500 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2026-08-31 09:54:18 +0200 |
| commit | 103da4a7bca6bc6ae263c5e4e3053fa166691731 (patch) | |
| tree | c4902ac8328f91e929122189badea902121f83a0 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 9e6c9d7531de7c6da66431a54d3c89f9514da937 (diff) | |
ALSA: usb-audio: Add PM guard to Scarlett meter reads
The Scarlett Gen 1 meter callback reads the device without preventing
runtime suspend or disconnect. The transfer can fail when userspace
polls the volatile control after the device suspends.
Hold snd_usb_lock across the meter request. This matches the guarded
Forte and common mixer control paths in this file.
Assisted-by: Codex:gpt-5.6-sol
Signed-off-by: Will Porter <mrwillporter@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260827232143.149197-4-mrwillporter@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions