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Subject[PATCH v2 02/18] fpga: dfl: fme: remove copy_to_user() in ioctl for PR
Date
This patch removes copy_to_user() code in partial reconfiguration
ioctl, as it's useless as user never needs to read the data
structure after ioctl.

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
---
v2: clean up code split from patch 2 in v1 patchset.
---
drivers/fpga/dfl-fme-pr.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c
index d9ca955..6ec0f09 100644
--- a/drivers/fpga/dfl-fme-pr.c
+++ b/drivers/fpga/dfl-fme-pr.c
@@ -159,9 +159,6 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg)
mutex_unlock(&pdata->lock);
free_exit:
vfree(buf);
- if (copy_to_user((void __user *)arg, &port_pr, minsz))
- return -EFAULT;
-
return ret;
}

--
1.8.3.1
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