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dma/imx-sdma: use num_events to validate event_id0

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event number is not always 32. use num_events for checking instead.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Richard Zhao 2012-01-13 11:10:00 +08:00 committed by Vinod Koul
parent c2c744d3aa
commit b78bd91f47
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/imx-sdma.c
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@ -723,7 +723,7 @@ static int sdma_config_channel(struct sdma_channel *sdmac)
sdmac->per_addr = 0;
if (sdmac->event_id0) {
if (sdmac->event_id0 > 32)
if (sdmac->event_id0 >= sdmac->sdma->num_events)
return -EINVAL;
sdma_event_enable(sdmac, sdmac->event_id0);
}