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authorJack Yu <jack.yu@realtek.com>2026-08-18 10:30:18 +0800
committerMark Brown <broonie@kernel.org>2026-08-18 18:29:43 +0100
commit046173b98de316211b81d9909cde81ca582604a8 (patch)
tree16d6009164e7e078cc527ae6ca432669e3bd3b1a /tools/perf/scripts/python/bin/stackcollapse-record
parentdd0ae9a2e19a24c532c9aa80a44f572b4907bcdf (diff)
ASoC: sdw_utils: fix double put_device() on aggregated amps
In aggregation mode with two identical amplifiers, a stress test that repeatedly triggers card unbind/rebind can hit a NULL pointer dereference during the exit path. ctx->amp_dev1 / ctx->amp_dev2 are single shared resources, so the release must be safe against being called more than once. Clear each pointer after put_device() so a second invocation becomes a no-op, this could address NULL pointer dereference issue. Signed-off-by: Jack Yu <jack.yu@realtek.com> Link: https://patch.msgid.link/20260818023018.2564212-1-jack.yu@realtek.com Signed-off-by: Mark Brown <broonie@kernel.org>
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