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| author | Théo Lebrun <theo.lebrun@bootlin.com> | 2024-02-22 11:12:29 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-02-22 12:25:07 +0000 |
| commit | 32ce3bb57b6b402de2aec1012511e7ac4e7449dc (patch) | |
| tree | 5691c235082e1ad5f11388c1ad7014eb3d40efe0 /drivers/spi/spi-rzv2m-csi.c | |
| parent | 269e31aecdd0b70f53a05def79480f15cbcc0fd6 (diff) | |
spi: cadence-qspi: fix pointer reference in runtime PM hooks
dev_get_drvdata() gets used to acquire the pointer to cqspi and the SPI
controller. Neither embed the other; this lead to memory corruption.
On a given platform (Mobileye EyeQ5) the memory corruption is hidden
inside cqspi->f_pdata. Also, this uninitialised memory is used as a
mutex (ctlr->bus_lock_mutex) by spi_controller_suspend().
Fixes: 2087e85bb66e ("spi: cadence-quadspi: fix suspend-resume implementations")
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://msgid.link/r/20240222-cdns-qspi-pm-fix-v4-1-6b6af8bcbf59@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-rzv2m-csi.c')
0 files changed, 0 insertions, 0 deletions