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i2c: imx: fix handling of wait_for_completion_timeout result

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wait_for_completion_timeout does not return negative values so
"result" handling here should be simplified to cover the actually
possible cases only.

Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Nicholas Mc Guire 2014-12-27 08:33:53 -05:00 • committed by Wolfram Sang
parent 387f0de6c3
commit cb9eaba4c5
1 changed files with 4 additions and 4 deletions
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8
drivers/i2c/busses/i2c-imx.c
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@ -628,9 +628,9 @@ static int i2c_imx_dma_write(struct imx_i2c_struct *i2c_imx,
result = wait_for_completion_timeout( result = wait_for_completion_timeout(
&i2c_imx->dma->cmd_complete, &i2c_imx->dma->cmd_complete,
msecs_to_jiffies(DMA_TIMEOUT)); msecs_to_jiffies(DMA_TIMEOUT));
if (result <= 0) { if (result == 0) {
dmaengine_terminate_all(dma->chan_using); dmaengine_terminate_all(dma->chan_using);
return result ?: -ETIMEDOUT; return -ETIMEDOUT;
} }
/* Waiting for transfer complete. */ /* Waiting for transfer complete. */
@ -686,9 +686,9 @@ static int i2c_imx_dma_read(struct imx_i2c_struct *i2c_imx,
result = wait_for_completion_timeout( result = wait_for_completion_timeout(
&i2c_imx->dma->cmd_complete, &i2c_imx->dma->cmd_complete,
msecs_to_jiffies(DMA_TIMEOUT)); msecs_to_jiffies(DMA_TIMEOUT));
if (result <= 0) { if (result == 0) {
dmaengine_terminate_all(dma->chan_using); dmaengine_terminate_all(dma->chan_using);
return result ?: -ETIMEDOUT; return -ETIMEDOUT;
} }
/* waiting for transfer complete. */ /* waiting for transfer complete. */