spi: spi-bcm2835: Fix deadlock

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[ Upstream commit c45c1e82bb ]

The bcm2835_spi_transfer_one function can create a deadlock
if it is called while another thread already has the
CCF lock.

Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Fixes: f8043872e7 ("spi: add driver for BCM2835")
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210716210245.13240-2-alexandru.tachici@analog.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Alexandru Tachici 2021-07-17 00:02:45 +03:00 • committed by Greg Kroah-Hartman

parent 432738c974

commit ee36bb4713

1 changed files with 7 additions and 5 deletions

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drivers/spi/spi-bcm2835.c

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