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staging: comedi: rtd520: Prefer using macro DIV_ROUND_UP

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The macro DIV_ROUND_UP performs the computation
(((n) + (d) - 1) /(d)). It clarifies the divisor calculations.
This was done using the coccinelle script:
@@
expression e1;
expression e2;
@@
(
- ((e1) + e2 - 1) / (e2)
+ DIV_ROUND_UP(e1,e2)
|
- ((e1) + (e2 - 1)) / (e2)
+ DIV_ROUND_UP(e1,e2)
)

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bhaktipriya Shridhar 2016-03-10 00:19:38 +05:30 committed by Greg Kroah-Hartman
parent 7f9d2b1ce5
commit 0116317636
1 changed files with 2 additions and 3 deletions
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5
drivers/staging/comedi/drivers/rtd520.c
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@ -892,9 +892,8 @@ static int rtd_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
devpriv->xfer_count = cmd->chanlist_len;
} else { /* make a multiple of scan length */
devpriv->xfer_count =
(devpriv->xfer_count +
cmd->chanlist_len - 1)
/ cmd->chanlist_len;
DIV_ROUND_UP(devpriv->xfer_count,
cmd->chanlist_len);
devpriv->xfer_count *= cmd->chanlist_len;
}
devpriv->flags |= SEND_EOS;