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Jacek Lawrynowicz afada73000 accel/ivpu: Fix PM related deadlocks in MS IOCTLs
commit d893da85e0 upstream.

Prevent runtime resume/suspend while MS IOCTLs are in progress.
Failed suspend will call ivpu_ms_cleanup() that would try to acquire
file_priv->ms_lock, which is already held by the IOCTLs.

Fixes: cdfad4db77 ("accel/ivpu: Add NPU profiling support")
Cc: stable@vger.kernel.org # v6.11+
Signed-off-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20250325114306.3740022-3-maciej.falkowski@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-04-20 10:15:35 +02:00
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Linux kernel
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There are several guides for kernel developers and users. These guides can
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