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| author | Vishnu Sankar <vishnuocv@gmail.com> | 2026-07-15 10:02:05 +0900 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-07-20 11:19:35 +0300 |
| commit | 10bae492e814eeb1013ab9bc08f655d14fca46e4 (patch) | |
| tree | 1b1524ddb4b3552b5ae14ec6aa81ff90aa36b461 /tools/perf/scripts/python/task-analyzer.py | |
| parent | 2b3a5dabe89e330413af403246b648c1890f368f (diff) | |
platform/x86: thinkpad_acpi: Fix USB-C Security probe failure on unsupported platforms
On systems where the USCS ACPI method is absent, acpi_evalf() returns
AE_NOT_FOUND which maps to -EIO. This caused tpacpi_usbc_security_init()
to propagate the error and thinkpad_acpi failed to probe entirely on
unsupported platforms.
Fix this by checking for USCS method presence with acpi_has_method() before
attempting to call it, returning -ENODEV immediately if absent.
This follows the same pattern used by other subdrivers in thinkpad_acpi.c.
Fixes: 67e8d1e9cacd ("platform/x86: thinkpad_acpi: Add USB-C Security (USCS) support")
Reported-by: Oliver Lin <oliver@liuxiaozhen.dev>
Closes: https://lore.kernel.org/platform-driver-x86/239c8162-e1e6-4b49-8292-35547c5a525c@liuxiaozhen.dev/
Tested-by: Oliver Lin <oliver@liuxiaozhen.dev>
Signed-off-by: Vishnu Sankar <vishnuocv@gmail.com>
Link: https://patch.msgid.link/20260715010205.514132-1-vishnuocv@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions