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| author | Shuhao Fu <sfual@cse.ust.hk> | 2026-04-28 16:12:38 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2026-05-07 16:31:25 +0200 |
| commit | fca7401fe37f7abc6e54147ea560f37279231137 (patch) | |
| tree | b8a76f9dcec59781051c677f0e3534b272f91a96 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | aa2fbece1b07954ef26488c800d126a36a8ab93e (diff) | |
| download | linux-fca7401fe37f7abc6e54147ea560f37279231137.tar.gz linux-fca7401fe37f7abc6e54147ea560f37279231137.zip | |
ALSA: hda: cs35l41: Put ACPI device on missing physical node
acpi_dev_get_first_match_dev() returns a refcounted ACPI device and
callers must balance it with acpi_dev_put().
cs35l41_hda_read_acpi() stores the returned ACPI device in
cs35l41->dacpi. That reference is normally released by the later
probe cleanup or the remove path, but the NULL-check on
physdev exits before either of those paths can run.
Drop the lookup reference before returning -ENODEV.
Fixes: c34b04cc6178 ("ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_hda_read_acpi()")
Signed-off-by: Shuhao Fu <sfual@cse.ust.hk>
Tested-by: Simon Trimmer <simont@opensource.cirrus.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260428081238.GA1659932@chcpu16
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions