spi: davinci: fix spurious i/o error

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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>

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Sekhar Nori 2015-12-10 21:59:04 +05:30 • committed by Mark Brown

parent 8005c49d9a

commit 7f3ac71ac3

1 changed files with 2 additions and 1 deletions

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drivers/spi/spi-davinci.c

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