diff mbox series

[02/15] fpga: dfl: fme: remove copy_to_user() in ioctl for PR

Message ID 20190628004951.6202-3-mdf@kernel.org (mailing list archive)
State Awaiting Upstream
Headers show
Series FPGA DFL updates | expand

Commit Message

Moritz Fischer June 28, 2019, 12:49 a.m. UTC 
From: Wu Hao <hao.wu@intel.com>

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>
---
 drivers/fpga/dfl-fme-pr.c | 3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c
index d9ca9554844a..6ec0f09e5994 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;
 }