tree 549f08faf5ff10d4e237009c37c3ae6027495aea
parent 8005c49d9aea74d382f474ce11afbbc7d7130bec
author Sekhar Nori <nsekhar@ti.com> 1449764944 +0530
committer Mark Brown <broonie@kernel.org> 1449961064 +0000

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>