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Commit 1d9086ac authored by Alexander Viro's avatar Alexander Viro Committed by Linus Torvalds
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[PATCH] sparse: trivial annotations in drivers/char/*

parent a7834704
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Showing with 47 additions and 47 deletions
drivers/char/dtlk.c
View file @ 1d9086ac
......@@ -85,9 +85,9 @@ static wait_queue_head_t dtlk_process_list;
static struct timer_list dtlk_timer;
/* prototypes for file_operations struct */
static ssize_t dtlk_read(struct file *, char *,
static ssize_t dtlk_read(struct file *, char __user *,
size_t nbytes, loff_t * ppos);
static ssize_t dtlk_write(struct file *, const char *,
static ssize_t dtlk_write(struct file *, const char __user *,
size_t nbytes, loff_t * ppos);
static unsigned int dtlk_poll(struct file *, poll_table *);
static int dtlk_open(struct inode *, struct file *);
......@@ -121,7 +121,7 @@ static char dtlk_write_tts(char);
*/
static void dtlk_timer_tick(unsigned long data);
static ssize_t dtlk_read(struct file *file, char *buf,
static ssize_t dtlk_read(struct file *file, char __user *buf,
size_t count, loff_t * ppos)
{
unsigned int minor = iminor(file->f_dentry->d_inode);
......@@ -158,7 +158,7 @@ static ssize_t dtlk_read(struct file *file, char *buf,
return -EAGAIN;
}
static ssize_t dtlk_write(struct file *file, const char *buf,
static ssize_t dtlk_write(struct file *file, const char __user *buf,
size_t count, loff_t * ppos)
{
int i = 0, retries = 0, ch;
......@@ -277,6 +277,7 @@ static int dtlk_ioctl(struct inode *inode,
unsigned int cmd,
unsigned long arg)
{
char __user *argp = (char __user *)arg;
struct dtlk_settings *sp;
char portval;
TRACE_TEXT(" dtlk_ioctl");
......@@ -285,14 +286,13 @@ static int dtlk_ioctl(struct inode *inode,
case DTLK_INTERROGATE:
sp = dtlk_interrogate();
if (copy_to_user((char *) arg, (char *) sp,
sizeof(struct dtlk_settings)))
if (copy_to_user(argp, sp, sizeof(struct dtlk_settings)))
return -EINVAL;
return 0;
case DTLK_STATUS:
portval = inb_p(dtlk_port_tts);
return put_user(portval, (char *) arg);
return put_user(portval, argp);
default:
return -EINVAL;
......
drivers/char/genrtc.c
View file @ 1d9086ac
......@@ -171,7 +171,7 @@ static void gen_rtc_interrupt(unsigned long arg)
/*
* Now all the various file operations that we export.
*/
static ssize_t gen_rtc_read(struct file *file, char *buf,
static ssize_t gen_rtc_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
DECLARE_WAITQUEUE(wait, current);
......@@ -200,10 +200,10 @@ static ssize_t gen_rtc_read(struct file *file, char *buf,
/* first test allows optimizer to nuke this case for 32-bit machines */
if (sizeof (int) != sizeof (long) && count == sizeof (unsigned int)) {
unsigned int uidata = data;
retval = put_user(uidata, (unsigned long *)buf);
retval = put_user(uidata, (unsigned long __user *)buf);
}
else {
retval = put_user(data, (unsigned long *)buf);
retval = put_user(data, (unsigned long __user *)buf);
}
if (!retval)
retval = sizeof(unsigned long);
......@@ -278,6 +278,7 @@ static int gen_rtc_ioctl(struct inode *inode, struct file *file,
{
struct rtc_time wtime;
struct rtc_pll_info pll;
void __user *argp = (void __user *)arg;
switch (cmd) {
......@@ -285,13 +286,12 @@ static int gen_rtc_ioctl(struct inode *inode, struct file *file,
if (get_rtc_pll(&pll))
return -EINVAL;
else
return copy_to_user((void *)arg, &pll, sizeof pll) ? -EFAULT : 0;
return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
case RTC_PLL_SET:
if (!capable(CAP_SYS_TIME))
return -EACCES;
if (copy_from_user(&pll, (struct rtc_pll_info*)arg,
sizeof(pll)))
if (copy_from_user(&pll, argp, sizeof(pll)))
return -EFAULT;
return set_rtc_pll(&pll);
......@@ -307,7 +307,7 @@ static int gen_rtc_ioctl(struct inode *inode, struct file *file,
memset(&wtime, 0, sizeof(wtime));
get_rtc_time(&wtime);
return copy_to_user((void *)arg, &wtime, sizeof(wtime)) ? -EFAULT : 0;
return copy_to_user(argp, &wtime, sizeof(wtime)) ? -EFAULT : 0;
case RTC_SET_TIME: /* Set the RTC */
{
......@@ -317,8 +317,7 @@ static int gen_rtc_ioctl(struct inode *inode, struct file *file,
if (!capable(CAP_SYS_TIME))
return -EACCES;
if (copy_from_user(&wtime, (struct rtc_time *)arg,
sizeof(wtime)))
if (copy_from_user(&wtime, argp, sizeof(wtime)))
return -EFAULT;
year = wtime.tm_year + 1900;
......
drivers/char/hpet.c
View file @ 1d9086ac
......@@ -174,7 +174,7 @@ static int hpet_open(struct inode *inode, struct file *file)
}
static ssize_t
hpet_read(struct file *file, char *buf, size_t count, loff_t * ppos)
hpet_read(struct file *file, char __user *buf, size_t count, loff_t * ppos)
{
DECLARE_WAITQUEUE(wait, current);
unsigned long data;
......@@ -212,7 +212,7 @@ hpet_read(struct file *file, char *buf, size_t count, loff_t * ppos)
} while (1);
retval = put_user(data, (unsigned long *)buf);
retval = put_user(data, (unsigned long __user *)buf);
if (!retval)
retval = sizeof(unsigned long);
out:
......@@ -477,7 +477,7 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK;
info.hi_hpet = devp->hd_hpets->hp_which;
info.hi_timer = devp - devp->hd_hpets->hp_dev;
if (copy_to_user((void *)arg, &info, sizeof(info)))
if (copy_to_user((void __user *)arg, &info, sizeof(info)))
err = -EFAULT;
break;
}
......
drivers/char/n_hdlc.c
View file @ 1d9086ac
......@@ -182,9 +182,9 @@ static ssize_t maxframe = 4096;
/* TTY callbacks */
static ssize_t n_hdlc_tty_read(struct tty_struct *tty, struct file *file,
__u8 *buf, size_t nr);
__u8 __user *buf, size_t nr);
static ssize_t n_hdlc_tty_write(struct tty_struct *tty, struct file *file,
const __u8 *buf, size_t nr);
const __u8 __user *buf, size_t nr);
static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
static unsigned int n_hdlc_tty_poll(struct tty_struct *tty, struct file *filp,
......@@ -572,7 +572,7 @@ static void n_hdlc_tty_receive(struct tty_struct *tty, const __u8 *data,
* Returns the number of bytes returned or error code.
*/
static ssize_t n_hdlc_tty_read(struct tty_struct *tty, struct file *file,
__u8 *buf, size_t nr)
__u8 __user *buf, size_t nr)
{
struct n_hdlc *n_hdlc = tty2n_hdlc(tty);
int error;
......@@ -649,7 +649,7 @@ static ssize_t n_hdlc_tty_read(struct tty_struct *tty, struct file *file,
* Returns the number of bytes written (or error code).
*/
static ssize_t n_hdlc_tty_write(struct tty_struct *tty, struct file *file,
const __u8 *data, size_t count)
const __u8 __user *data, size_t count)
{
struct n_hdlc *n_hdlc = tty2n_hdlc (tty);
int error = 0;
......@@ -755,7 +755,7 @@ static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file,
else
count = 0;
spin_unlock_irqrestore(&n_hdlc->rx_buf_list.spinlock,flags);
error = put_user(count, (int *)arg);
error = put_user(count, (int __user *)arg);
break;
case TIOCOUTQ:
......@@ -767,7 +767,7 @@ static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file,
if (n_hdlc->tx_buf_list.head)
count += n_hdlc->tx_buf_list.head->count;
spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock,flags);
error = put_user(count, (int*)arg);
error = put_user(count, (int __user *)arg);
break;
default:
......
drivers/char/n_r3964.c
View file @ 1d9086ac
......@@ -126,7 +126,7 @@ static void receive_char(struct r3964_info *pInfo, const unsigned char c);
static void receive_error(struct r3964_info *pInfo, const char flag);
static void on_timeout(unsigned long priv);
static int enable_signals(struct r3964_info *pInfo, pid_t pid, int arg);
static int read_telegram(struct r3964_info *pInfo, pid_t pid, unsigned char *buf);
static int read_telegram(struct r3964_info *pInfo, pid_t pid, unsigned char __user *buf);
static void add_msg(struct r3964_client_info *pClient, int msg_id, int arg,
int error_code, struct r3964_block_header *pBlock);
static struct r3964_message* remove_msg(struct r3964_info *pInfo,
......@@ -137,9 +137,9 @@ static void remove_client_block(struct r3964_info *pInfo,
static int r3964_open(struct tty_struct *tty);
static void r3964_close(struct tty_struct *tty);
static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
unsigned char *buf, size_t nr);
unsigned char __user *buf, size_t nr);
static ssize_t r3964_write(struct tty_struct * tty, struct file * file,
const unsigned char * buf, size_t nr);
const unsigned char __user * buf, size_t nr);
static int r3964_ioctl(struct tty_struct * tty, struct file * file,
unsigned int cmd, unsigned long arg);
static void r3964_set_termios(struct tty_struct *tty, struct termios * old);
......@@ -910,7 +910,7 @@ static int enable_signals(struct r3964_info *pInfo, pid_t pid, int arg)
return 0;
}
static int read_telegram(struct r3964_info *pInfo, pid_t pid, unsigned char *buf)
static int read_telegram(struct r3964_info *pInfo, pid_t pid, unsigned char __user *buf)
{
struct r3964_client_info *pClient;
struct r3964_block_header *block;
......@@ -1185,7 +1185,7 @@ static void r3964_close(struct tty_struct *tty)
}
static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
unsigned char *buf, size_t nr)
unsigned char __user *buf, size_t nr)
{
struct r3964_info *pInfo=(struct r3964_info*)tty->disc_data;
struct r3964_client_info *pClient;
......@@ -1246,7 +1246,7 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
}
static ssize_t r3964_write(struct tty_struct * tty, struct file * file,
const unsigned char *data, size_t count)
const unsigned char __user *data, size_t count)
{
struct r3964_info *pInfo=(struct r3964_info*)tty->disc_data;
struct r3964_block_header *pHeader;
......@@ -1348,7 +1348,7 @@ static int r3964_ioctl(struct tty_struct * tty, struct file * file,
pInfo->flags &= ~R3964_BCC;
return 0;
case R3964_READ_TELEGRAM:
return read_telegram(pInfo, current->pid, (unsigned char *)arg);
return read_telegram(pInfo, current->pid, (unsigned char __user *)arg);
default:
return -ENOIOCTLCMD;
}
......
drivers/char/rocket.c
View file @ 1d9086ac
......@@ -1258,7 +1258,7 @@ static int rp_tiocmset(struct tty_struct *tty, struct file *file,
return 0;
}
static int get_config(struct r_port *info, struct rocket_config *retinfo)
static int get_config(struct r_port *info, struct rocket_config __user *retinfo)
{
struct rocket_config tmp;
......@@ -1276,7 +1276,7 @@ static int get_config(struct r_port *info, struct rocket_config *retinfo)
return 0;
}
static int set_config(struct r_port *info, struct rocket_config *new_info)
static int set_config(struct r_port *info, struct rocket_config __user *new_info)
{
struct rocket_config new_serial;
......@@ -1319,7 +1319,7 @@ static int set_config(struct r_port *info, struct rocket_config *new_info)
* to user space. See setrocket.c where the info is used to create
* the /dev/ttyRx ports.
*/
static int get_ports(struct r_port *info, struct rocket_ports *retports)
static int get_ports(struct r_port *info, struct rocket_ports __user *retports)
{
struct rocket_ports tmp;
int board;
......@@ -1341,11 +1341,11 @@ static int get_ports(struct r_port *info, struct rocket_ports *retports)
return 0;
}
static int reset_rm2(struct r_port *info, unsigned long arg)
static int reset_rm2(struct r_port *info, void __user *arg)
{
int reset;
if (copy_from_user(&reset, (void *) arg, sizeof (int)))
if (copy_from_user(&reset, arg, sizeof (int)))
return -EFAULT;
if (reset)
reset = 1;
......@@ -1362,7 +1362,7 @@ static int reset_rm2(struct r_port *info, unsigned long arg)
return 0;
}
static int get_version(struct r_port *info, struct rocket_version *retvers)
static int get_version(struct r_port *info, struct rocket_version __user *retvers)
{
if (copy_to_user(retvers, &driver_version, sizeof (*retvers)))
return -EFAULT;
......@@ -1374,25 +1374,26 @@ static int rp_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct r_port *info = (struct r_port *) tty->driver_data;
void __user *argp = (void __user *)arg;
if (cmd != RCKP_GET_PORTS && rocket_paranoia_check(info, "rp_ioctl"))
return -ENXIO;
switch (cmd) {
case RCKP_GET_STRUCT:
if (copy_to_user((void *) arg, info, sizeof (struct r_port)))
if (copy_to_user(argp, info, sizeof (struct r_port)))
return -EFAULT;
return 0;
case RCKP_GET_CONFIG:
return get_config(info, (struct rocket_config *) arg);
return get_config(info, argp);
case RCKP_SET_CONFIG:
return set_config(info, (struct rocket_config *) arg);
return set_config(info, argp);
case RCKP_GET_PORTS:
return get_ports(info, (struct rocket_ports *) arg);
return get_ports(info, argp);
case RCKP_RESET_RM2:
return reset_rm2(info, arg);
return reset_rm2(info, argp);
case RCKP_GET_VERSION:
return get_version(info, (struct rocket_version *) arg);
return get_version(info, argp);
default:
return -ENOIOCTLCMD;
}
......
drivers/char/tipar.c
View file @ 1d9086ac
......@@ -279,7 +279,7 @@ tipar_close(struct inode *inode, struct file *file)
}
static ssize_t
tipar_write(struct file *file, const char *buf, size_t count, loff_t * ppos)
tipar_write(struct file *file, const char __user *buf, size_t count, loff_t * ppos)
{
unsigned int minor = iminor(file->f_dentry->d_inode) - TIPAR_MINOR;
ssize_t n;
......@@ -306,7 +306,7 @@ tipar_write(struct file *file, const char *buf, size_t count, loff_t * ppos)
}
static ssize_t
tipar_read(struct file *file, char *buf, size_t count, loff_t * ppos)
tipar_read(struct file *file, char __user *buf, size_t count, loff_t * ppos)
{
int b = 0;
unsigned int minor = iminor(file->f_dentry->d_inode) - TIPAR_MINOR;
......@@ -328,7 +328,7 @@ tipar_read(struct file *file, char *buf, size_t count, loff_t * ppos)
retval = -ETIMEDOUT;
goto out;
} else {
if (put_user(b, ((unsigned char *) buf) + n)) {
if (put_user(b, buf + n)) {
retval = -EFAULT;
break;
} else
......
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