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authorSean Christopherson <seanjc@google.com>2025-05-16 16:07:27 -0700
committerSean Christopherson <seanjc@google.com>2025-06-20 13:52:36 -0700
commitfa079a0616edbcdad538128306abbc19b68a9863 (patch)
tree42b1f9be01907431daabdb5d976f3535eb40c025 /tools/perf/scripts/python/flamegraph.py
parentcd4178d19420359554e3da6fd77ecfd0f58067ce (diff)
irqbypass: Drop pointless and misleading THIS_MODULE get/put
Drop irqbypass.ko's superfluous and misleading get/put calls on THIS_MODULE. A module taking a reference to itself is useless; no amount of checks will prevent doom and destruction if the caller hasn't already guaranteed the liveliness of the module (this goes for any module). E.g. if try_module_get() fails because irqbypass.ko is being unloaded, then the kernel has already hit a use-after-free by virtue of executing code whose lifecycle is tied to irqbypass.ko. Reviewed-by: Kevin Tian <kevin.tian@intel.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Link: https://lore.kernel.org/r/20250516230734.2564775-2-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
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