usb: chipidea: tegra: disable runtime PM on resume failure

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tegra_usb_probe() enables runtime PM before resuming the device. If
pm_runtime_resume_and_get() fails, probe returns without disabling runtime
PM. The later error paths reach pm_runtime_force_suspend(), but this early
return bypasses that cleanup.

Disable runtime PM before returning the resume error. Do not use the
fail_power_off path: the failed resume did not retain a usage reference,
so its pm_runtime_put_sync_suspend() would be unbalanced.

This issue was identified during our ongoing static-analysis research while
reviewing kernel code.

Fixes: 8b85e11c1a ("usb: chipidea: tegra: Add runtime PM and OPP support")
Cc: stable <stable@kernel.org>
Assisted-by: OpenAI:GPT-5.6
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://patch.msgid.link/20260913041033.25144-1-mhun512@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Myeonghun Pak 2026-09-13 00:10:33 -04:00 • committed by Greg Kroah-Hartman

parent 469600d5d2

commit f1d6f7d25f

1 changed files with 3 additions and 1 deletions

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drivers/usb/chipidea/ci_hdrc_tegra.c

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