]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
accel/ivpu: Fix PM related deadlocks in MS IOCTLs
authorJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Tue, 25 Mar 2025 11:43:06 +0000 (12:43 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 20 Apr 2025 08:15:35 +0000 (10:15 +0200)
commitafada73000bef7c79a22f0d7e93fac414eeff19e
tree3ea98793d9aa673345dc57916c74da060033bac3
parent4c8056fbb17d652227b66f53162601b043a06ece
accel/ivpu: Fix PM related deadlocks in MS IOCTLs

commit d893da85e06edf54737bb80648bb58ba8fd56d9f 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: cdfad4db7756 ("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>
drivers/accel/ivpu/ivpu_debugfs.c
drivers/accel/ivpu/ivpu_ms.c