linux-kernel - [patch 1/4] skd: use regular version of copy_from

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Message-ID: <20130913075523.GE19211@elgon.mountain>
Date:	Fri, 13 Sep 2013 10:55:23 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Jeff Moyer <jmoyer@...hat.com>,
	Ramprasad Chinthekindi <rchinthekindi@...c-inc.com>,
	Akhil Bhansali <abhansali@...c-inc.com>,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch 1/4] skd: use regular version of copy_from_user()

The other __copy_from_user() calls have access_ok() checks so they are
fine, but these two don't have the check.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 6fc0296..dfd05a9 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -1736,7 +1736,7 @@ static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
 		return -EINVAL;
 	}
 
-	if (__copy_from_user(sksgio->cdb, sgp->cmdp, sgp->cmd_len)) {
+	if (copy_from_user(sksgio->cdb, sgp->cmdp, sgp->cmd_len)) {
 		DPRINTK(skdev, "copy_from_user cmdp failed %p\n", sgp->cmdp);
 		return -EFAULT;
 	}
@@ -1767,7 +1767,7 @@ static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
 		sksgio->iov = iov;
 		sksgio->iovcnt = sgp->iovec_count;
 
-		if (__copy_from_user(iov, sgp->dxferp, nbytes)) {
+		if (copy_from_user(iov, sgp->dxferp, nbytes)) {
 			DPRINTK(skdev, "copy_from_user iovec failed %p\n",
 				sgp->dxferp);
 			return -EFAULT;
--
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