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[WATCHDOG] wdt285: fix sparse warnings

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The wdt285.c watchdog driver is producing a number of
sparse errors due to missing __user attributes to calls
to put_user and copy_to_user, as well as in the prototype
of watchdog_write.

wdt285.c:144:21: warning: incorrect type in argument 1 (different address spaces)
wdt285.c:144:21:    expected void [noderef] <asn:1>*to
wdt285.c:144:21:    got void *<noident>
wdt285.c:150:9: warning: incorrect type in initializer (different address spaces)
wdt285.c:150:9:    expected int const [noderef] <asn:1>*register __p
wdt285.c:150:9:    got int *<noident>
wdt285.c:159:9: warning: incorrect type in initializer (different address spaces)
wdt285.c:159:9:    expected int const [noderef] <asn:1>*register __p
wdt285.c:159:9:    got int *<noident>
wdt285.c:174:9: warning: incorrect type in initializer (different address spaces)
wdt285.c:174:9:    expected int const [noderef] <asn:1>*register __p
wdt285.c:174:9:    got int *<noident>
wdt285.c:183:12: warning: incorrect type in initializer (incompatible argument 2 (different address spaces))
wdt285.c:183:12:    expected int ( *write )( ... )
wdt285.c:183:12:    got int ( static [toplevel] *<noident> )( ... )

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ben Dooks 2008-09-16 11:31:01 +01:00 committed by Wim Van Sebroeck
parent 7f605ac004
commit edf86c9b98
1 changed files with 8 additions and 7 deletions
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15
drivers/watchdog/wdt285.c
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@ -115,8 +115,8 @@ static int watchdog_release(struct inode *inode, struct file *file)
return 0;
}
static ssize_t watchdog_write(struct file *file, const char *data,
size_t len, loff_t *ppos)
static ssize_t watchdog_write(struct file *file, const char __user *data,
size_t len, loff_t *ppos)
{
/*
* Refresh the timer.
@ -133,21 +133,22 @@ static const struct watchdog_info ident = {
};
static long watchdog_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
unsigned long arg)
{
unsigned int new_margin;
int __user *int_arg = (int __user *)arg;
int ret = -ENOTTY;
switch (cmd) {
case WDIOC_GETSUPPORT:
ret = 0;
if (copy_to_user((void *)arg, &ident, sizeof(ident)))
if (copy_to_user((void __user *)arg, &ident, sizeof(ident)))
ret = -EFAULT;
break;
case WDIOC_GETSTATUS:
case WDIOC_GETBOOTSTATUS:
ret = put_user(0, (int *)arg);
ret = put_user(0, int_arg);
break;
case WDIOC_KEEPALIVE:
@ -156,7 +157,7 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd,
break;
case WDIOC_SETTIMEOUT:
ret = get_user(new_margin, (int *)arg);
ret = get_user(new_margin, int_arg);
if (ret)
break;
@ -171,7 +172,7 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd,
watchdog_ping();
/* Fall */
case WDIOC_GETTIMEOUT:
ret = put_user(soft_margin, (int *)arg);
ret = put_user(soft_margin, int_arg);
break;
}
return ret;