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fpga: dfl: fme: remove copy_to_user() in ioctl for PR

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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>
Acked-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20190628004951.6202-3-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wu Hao 2019-06-27 17:49:38 -07:00 committed by Greg Kroah-Hartman
parent e150e3f4ad
commit 49ec630cd5
1 changed files with 0 additions and 3 deletions
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3
drivers/fpga/dfl-fme-pr.c
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@ -159,9 +159,6 @@ unlock_exit:
mutex_unlock(&pdata->lock);
free_exit:
vfree(buf);
if (copy_to_user((void __user *)arg, &port_pr, minsz))
return -EFAULT;
return ret;
}