projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 8005c49) | patch
spi: spidev: Hold spi_lock over all defererences of spi in release()
authorMark Brown <broonie@kernel.org>
Mon, 16 Nov 2015 13:57:37 +0000 (13:57 +0000)
committerMark Brown <broonie@kernel.org>
Wed, 16 Dec 2015 12:09:35 +0000 (12:09 +0000)
commit56ea1075e7f07724cf9b91039aa0968a0c70112f
treee294e23459ac7119c774cb8350f3734036819f3btree | snapshot (tar.gz zip)
parent8005c49d9aea74d382f474ce11afbbc7d7130beccommit | diff
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>
drivers/spi/spidev.c diff | blob | blame | history