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| author | Heiko Stübner <heiko@sntech.de> | 2016-03-18 13:15:11 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-03-18 13:37:09 +0300 |
| commit | 24c8cd1b081286fd34340f0e1fc68a774a5a775f (patch) | |
| tree | ca4565ebd4913413129ba626bd5d823c767bc0ec /mm/compaction.c | |
| parent | c508709bcffb644afbf5e5016fc7c90bf80c30ff (diff) | |
| download | linux-24c8cd1b081286fd34340f0e1fc68a774a5a775f.tar.xz | |
spi: fix possible deadlock between internal bus locks and bus_lock_flag
External users may use spi_bus_lock to get exclusive access. This will
also grab the bus_lock_mutex and may therefore result in a deadlock if
__spi_pump_messages also tries to get the mutex.
Therefore adapt spi_pump_messages as well as spi_sync to preset the
bus_locked parameter according to the master->bus_lock_flag.
Fixes: 49023d2e4ead ("spi: core: Fix deadlock when sending messages")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'mm/compaction.c')
0 files changed, 0 insertions, 0 deletions