tree e294e23459ac7119c774cb8350f3734036819f3b
parent 8005c49d9aea74d382f474ce11afbbc7d7130bec
author Mark Brown <broonie@kernel.org> 1447682257 +0000
committer Mark Brown <broonie@kernel.org> 1450267775 +0000

spi: spidev: Hold spi_lock over all defererences of spi in release()

We use the spi_lock spinlock to protect against races between the device
being removed and file operations on the spidev.  This means that in the
removal path all references to the device need to be done under lock as
in removal we dropping references to the device.

Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>