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| author | Shengzhuo Wei <me@cherr.cc> | 2026-08-27 23:43:01 +0800 |
|---|---|---|
| committer | Andi Shyti <andi.shyti@kernel.org> | 2026-09-20 09:40:28 +0200 |
| commit | f7eeb1af8537b05953fb1c88ab8b59d94059a381 (patch) | |
| tree | c755bc605433ce0223e599073573693e6352aed3 /tools/perf/scripts/python | |
| parent | ad34235808b63a70ca4989b7a2852923193d06ef (diff) | |
| download | linux-next-f7eeb1af8537b05953fb1c88ab8b59d94059a381.tar.gz linux-next-f7eeb1af8537b05953fb1c88ab8b59d94059a381.zip | |
i2c: at91: release DMA channels on remove and probe error
at91_twi_configure_dma() requests exclusive tx/rx DMA channels, but
nothing ever releases them on driver detach, and the probe error path
after the channels are acquired (i2c_add_numbered_adapter() failure)
returns without releasing them either, because the remove callback is
not invoked after a failed probe.
Move the release into a helper, call it from the existing
configure-failure path, the adapter-registration failure path, and
at91_twi_remove().
Fixes: 60937b2cdbf9 ("i2c: at91: add dma support")
Assisted-by: GLM:5.3
Signed-off-by: Shengzhuo Wei <me@cherr.cc>
Cc: <stable@vger.kernel.org> # v3.8+
Acked-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260827-i2c-dma-channel-leak-v1-1-271d4adc03a0@cherr.cc
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions