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(parent: 8005c49) | patch
spi: davinci: fix spurious i/o error
authorSekhar Nori <nsekhar@ti.com>
Thu, 10 Dec 2015 16:29:04 +0000 (21:59 +0530)
committerMark Brown <broonie@kernel.org>
Sat, 12 Dec 2015 22:57:44 +0000 (22:57 +0000)
commit7f3ac71ac3b05aaa2c55c266448f973188275a8c
tree549f08faf5ff10d4e237009c37c3ae6027495aeatree | snapshot (tar.gz zip)
parent8005c49d9aea74d382f474ce11afbbc7d7130beccommit | diff
spi: davinci: fix spurious i/o error

davinci_spi_bufs() uses wait_for_completion_interruptible()
without bothering to handle -ERESTARTSYS. Due to this,
sometime, it returns prematurely when a signal is received.
Since the return value is never checked, userspace eventually
receives a spurious -EIO.

To fix this, use un-interruptible wait_for_completion_timeout().

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-davinci.c diff | blob | blame | history