dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submit

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mx53_loco: fix deadlock report from sdma_tx_submit() during boot

BugLink: http://bugs.launchpad.net/bugs/878701

Adjust to use spin_lock_irqsave()/spin_unlock_irqresotre(), so to
make it safe when called from interrupt context.

Signed-off-by: Haitao Zhang <haitao.zhang@linaro.org>
Signed-off-by: Eric Miao <eric.miao@linaro.org>
Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

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Haitao Zhang 2012-01-01 11:30:06 +08:00 • committed by Vinod Koul

parent e9f3a49c96

commit f69f2e264f

1 changed files with 3 additions and 2 deletions

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drivers/dma/imx-sdma.c

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