From: "Emilio G. Cota" <cota@braap.org>
To: Greg KH <greg@kroah.com>
Cc: Martyn Welch <martyn.welch@ge.com>,
LKML <linux-kernel@vger.kernel.org>,
Juan David Gonzalez Cobas <david.cobas@gmail.com>
Subject: [PATCH 16/30] staging/vme_user: mark user-space buffers with __user
Date: Fri, 22 Oct 2010 02:36:38 -0400 [thread overview]
Message-ID: <1287729412-24356-17-git-send-email-cota@braap.org> (raw)
In-Reply-To: <1287729412-24356-1-git-send-email-cota@braap.org>
From: Emilio G. Cota <cota@braap.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
---
drivers/staging/vme/devices/vme_user.c | 25 +++++++++++--------------
1 files changed, 11 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
index ead30d2..a7b97be 100644
--- a/drivers/staging/vme/devices/vme_user.c
+++ b/drivers/staging/vme/devices/vme_user.c
@@ -129,8 +129,8 @@ static const int type[VME_DEVS] = { MASTER_MINOR, MASTER_MINOR,
static int vme_user_open(struct inode *, struct file *);
static int vme_user_release(struct inode *, struct file *);
-static ssize_t vme_user_read(struct file *, char *, size_t, loff_t *);
-static ssize_t vme_user_write(struct file *, const char *, size_t, loff_t *);
+static ssize_t vme_user_read(struct file *, char __user *, size_t, loff_t *);
+static ssize_t vme_user_write(struct file *, const char __user *, size_t, loff_t *);
static loff_t vme_user_llseek(struct file *, loff_t, int);
static long vme_user_unlocked_ioctl(struct file *, unsigned int, unsigned long);
@@ -246,7 +246,7 @@ static ssize_t resource_to_user(int minor, char __user *buf, size_t count,
* page) transfers will lock the user space buffer into memory and then
* transfer the data directly from the user space buffers out to VME.
*/
-static ssize_t resource_from_user(unsigned int minor, const char *buf,
+static ssize_t resource_from_user(unsigned int minor, const char __user *buf,
size_t count, loff_t *ppos)
{
ssize_t retval;
@@ -293,7 +293,7 @@ static ssize_t buffer_to_user(unsigned int minor, char __user *buf,
return retval;
}
-static ssize_t buffer_from_user(unsigned int minor, const char *buf,
+static ssize_t buffer_from_user(unsigned int minor, const char __user *buf,
size_t count, loff_t *ppos)
{
void *image_ptr;
@@ -312,7 +312,7 @@ static ssize_t buffer_from_user(unsigned int minor, const char *buf,
return retval;
}
-static ssize_t vme_user_read(struct file *file, char *buf, size_t count,
+static ssize_t vme_user_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
unsigned int minor = MINOR(file->f_dentry->d_inode->i_rdev);
@@ -356,7 +356,7 @@ static ssize_t vme_user_read(struct file *file, char *buf, size_t count,
return retval;
}
-static ssize_t vme_user_write(struct file *file, const char *buf, size_t count,
+static ssize_t vme_user_write(struct file *file, const char __user *buf, size_t count,
loff_t *ppos)
{
unsigned int minor = MINOR(file->f_dentry->d_inode->i_rdev);
@@ -455,6 +455,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
unsigned int minor = MINOR(inode->i_rdev);
int retval;
dma_addr_t pci_addr;
+ void __user *argp = (void __user *)arg;
statistics.ioctls++;
@@ -474,8 +475,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
&master.size, &master.aspace,
&master.cycle, &master.dwidth);
- copied = copy_to_user((char *)arg, &master,
- sizeof(struct vme_master));
+ copied = copy_to_user(argp, &master, sizeof(struct vme_master));
if (copied != 0) {
printk(KERN_WARNING "Partial copy to "
"userspace\n");
@@ -487,8 +487,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
case VME_SET_MASTER:
- copied = copy_from_user(&master, (char *)arg,
- sizeof(master));
+ copied = copy_from_user(&master, argp, sizeof(master));
if (copied != 0) {
printk(KERN_WARNING "Partial copy from "
"userspace\n");
@@ -518,8 +517,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
&slave.size, &pci_addr, &slave.aspace,
&slave.cycle);
- copied = copy_to_user((char *)arg, &slave,
- sizeof(struct vme_slave));
+ copied = copy_to_user(argp, &slave, sizeof(struct vme_slave));
if (copied != 0) {
printk(KERN_WARNING "Partial copy to "
"userspace\n");
@@ -531,8 +529,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
case VME_SET_SLAVE:
- copied = copy_from_user(&slave, (char *)arg,
- sizeof(slave));
+ copied = copy_from_user(&slave, argp, sizeof(slave));
if (copied != 0) {
printk(KERN_WARNING "Partial copy from "
"userspace\n");
--
1.7.1
next prev parent reply other threads:[~2010-10-22 7:09 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-22 6:36 [-next] staging/vme: various fixes + new driver model for VME Emilio G. Cota
2010-10-22 6:36 ` [PATCH 01/30] staging/vme: style: convert '&(foo)' to '&foo' Emilio G. Cota
2010-10-22 6:36 ` [PATCH 02/30] staging/vme_user: return the appropriate error code when module_init fails Emilio G. Cota
2010-10-22 6:36 ` [PATCH 03/30] staging/vme_user: remove unreachable line Emilio G. Cota
2010-10-22 6:36 ` [PATCH 04/30] staging/vme: allow non-dynamic allocation of bus numbers Emilio G. Cota
2010-10-22 6:36 ` [PATCH 05/30] staging/vme: fix bogus clearing of the bus number in vme_free_bus_num Emilio G. Cota
2010-10-22 6:36 ` [PATCH 06/30] staging/vme/tsi148: use list_for_each_safe when deleting resources in .remove Emilio G. Cota
2010-10-22 6:36 ` [PATCH 07/30] staging/vme/tsi148: remove double freeing of the IRQ " Emilio G. Cota
2010-10-22 6:36 ` [PATCH 08/30] staging/vme/tsi148: fix warning in free_irq Emilio G. Cota
2010-10-22 6:36 ` [PATCH 09/30] staging/vme: fill in struct device's .release, even if it's a NOOP Emilio G. Cota
2010-10-22 6:36 ` [PATCH 10/30] staging/vme/tsi148: remove unreachable line Emilio G. Cota
2010-10-22 6:36 ` [PATCH 11/30] staging/vme/tsi148: declare static functions as such Emilio G. Cota
2010-10-22 6:36 ` [PATCH 12/30] staging/vme/ca91cx42: " Emilio G. Cota
2010-10-22 6:36 ` [PATCH 13/30] staging/vme_user: declare private variables as static Emilio G. Cota
2010-10-22 6:36 ` [PATCH 14/30] staging/vme_user: use an unsigned int for counting the number of kparams Emilio G. Cota
2010-10-22 6:36 ` [PATCH 15/30] staging/vme_user: remove __iomem marking from kern_buf and derivates Emilio G. Cota
2010-10-22 6:36 ` Emilio G. Cota [this message]
2010-10-22 6:36 ` [PATCH 17/30] staging/vme: mark struct vme_master_resource's base address pointer as __iomem Emilio G. Cota
2010-10-22 6:36 ` [PATCH 18/30] staging/vme/tsi148: mark the registers' " Emilio G. Cota
2010-10-22 6:36 ` [PATCH 19/30] staging/vme/ca91cx42: " Emilio G. Cota
2010-10-22 6:36 ` [PATCH 20/30] staging/vme: trivial: rename vme_bus_num_mtx to vme_buses_lock Emilio G. Cota
2010-10-22 6:36 ` [PATCH 21/30] staging/vme: keep a list of registered buses (bridges) Emilio G. Cota
2010-10-22 6:36 ` [PATCH 22/30] staging/vme/vme_user: use __dev{init,exit} for .probe and .remove Emilio G. Cota
2010-10-22 6:36 ` [PATCH 23/30] staging/vme_user: fix usage of the slave resources after they've been freed Emilio G. Cota
2010-10-22 6:36 ` [PATCH 24/30] staging/vme_user: remove unnecessary call to vme_slave_set Emilio G. Cota
2010-10-22 6:36 ` [PATCH 25/30] staging/vme_user: add missing calls to vme_master_free calls in .remove Emilio G. Cota
2010-10-22 6:36 ` [PATCH 26/30] staging/vme: move all contents of vme_bridge.h to vme.h Emilio G. Cota
2010-10-22 6:36 ` [PATCH 27/30] staging/vme: rework the bus model Emilio G. Cota
2010-10-22 23:27 ` Emilio G. Cota
2010-10-25 11:24 ` Martyn Welch
2010-10-26 1:02 ` Emilio G. Cota
2010-10-27 9:16 ` Martyn Welch
2010-10-27 15:40 ` Emilio G. Cota
2010-10-22 6:36 ` [PATCH 28/30] staging/vme: convert vme_* users to vme_*_ng Emilio G. Cota
2010-10-22 6:36 ` [PATCH 29/30] staging/vme: remove unused vme_* functions and related code Emilio G. Cota
2010-10-22 6:36 ` [PATCH 30/30] staging/vme: remove _ng suffixes Emilio G. Cota
2010-10-22 9:26 ` [-next] staging/vme: various fixes + new driver model for VME Martyn Welch
2010-10-22 23:03 ` Emilio G. Cota
2010-10-22 10:08 ` Martyn Welch
2010-10-22 23:04 ` Emilio G. Cota
2010-10-22 13:56 ` Greg KH
2010-10-22 22:56 ` Emilio G. Cota
2010-10-26 1:10 [re-send][-next] " Emilio G. Cota
2010-10-26 1:11 ` [PATCH 16/30] staging/vme_user: mark user-space buffers with __user Emilio G. Cota
2010-10-27 12:20 ` Martyn Welch
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