]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
accel/ivpu: Fix deadlock in ivpu_ms_cleanup()
authorJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Tue, 25 Mar 2025 11:43:05 +0000 (12:43 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 20 Apr 2025 08:15:42 +0000 (10:15 +0200)
commit7d12a7d43c7bab9097ba466581d8db702e7908dc
tree74dc1905522b6759b57e9d0352b08a198aab437f
parent5c200b7ebdf932d0f61c68815b8867792c01663c
accel/ivpu: Fix deadlock in ivpu_ms_cleanup()

commit 9a6f56762d23a1f3af15e67901493c927caaf882 upstream.

Fix deadlock in ivpu_ms_cleanup() by preventing runtime resume after
file_priv->ms_lock is acquired.

During a failure in runtime resume, a cold boot is executed, which
calls ivpu_ms_cleanup_all(). This function calls ivpu_ms_cleanup()
that acquires file_priv->ms_lock and causes the deadlock.

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/20250325114306.3740022-2-maciej.falkowski@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/accel/ivpu/ivpu_ms.c