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| author | Lukas Wunner | 2020-12-07 09:17:03 +0100 |
|---|---|---|
| committer | Mark Brown | 2020-12-07 14:18:49 +0000 |
| commit | 6cfd39e212dee2e77a0227ce4e0f55fa06d79f46 (patch) | |
| tree | 616ba286d0e51b9192d07a91ffeb5fb6ebe0024c /samples | |
| parent | 8f96c434dfbc85ffa755d6634c8c1cb2233fcf24 (diff) | |
spi: spi-qcom-qspi: Fix use-after-free on unbind
qcom_qspi_remove() accesses the driver's private data after calling
spi_unregister_master() even though that function releases the last
reference on the spi_master and thereby frees the private data.
Fix by switching over to the new devm_spi_alloc_master() helper which
keeps the private data accessible until the driver has unbound.
Fixes: f79a158d37c2 ("spi: spi-qcom-qspi: Use OPP API to set clk/perf state")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: <stable@vger.kernel.org> # v5.9+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation
Cc: <stable@vger.kernel.org> # v5.9+
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Link: https://lore.kernel.org/r/b6d3c4dce571d78a532fd74f27def0d5dc8d8a24.1607286887.git.lukas@wunner.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions