spi: rockchip-sfc: Fix double-free in remove() callback

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[ Upstream commit 111e286337 ]

The driver uses devm_spi_register_controller() for registration, which
automatically unregisters the controller via devm cleanup when the
device is removed. The manual call to spi_unregister_controller() in
the remove() callback can lead to a double-free.

And to make sure controller is unregistered before DMA buffer is
unmapped, switch to use spi_register_controller() in probe().

Fixes: 8011709906 ("spi: rockchip-sfc: Support pm ops")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Link: https://patch.msgid.link/20260310-sfc-v2-1-67fab04b097f@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Felix Gu 2026-03-10 02:01:34 +08:00 • committed by Greg Kroah-Hartman

parent 0a83d6c9e1

commit b6051f2bdd

1 changed files with 1 additions and 1 deletions

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drivers/spi/spi-rockchip-sfc.c

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