The patch titled
wdt285: fix sparse warnings
has been added to the -mm tree. Its filename is
wdt285-fix-sparse-warnings.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: wdt285: fix sparse warnings
From: Ben Dooks <ben-linux@xxxxxxxxx>
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@xxxxxxxxx>
Cc: Wim Van Sebroeck <wim@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/watchdog/wdt285.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff -puN drivers/watchdog/wdt285.c~wdt285-fix-sparse-warnings drivers/watchdog/wdt285.c
--- a/drivers/watchdog/wdt285.c~wdt285-fix-sparse-warnings
+++ a/drivers/watchdog/wdt285.c
@@ -115,8 +115,8 @@ static int watchdog_release(struct inode
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 *
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 *
watchdog_ping();
/* Fall */
case WDIOC_GETTIMEOUT:
- ret = put_user(soft_margin, (int *)arg);
+ ret = put_user(soft_margin, int_arg);
break;
}
return ret;
_
Patches currently in -mm which might be from ben-linux@xxxxxxxxx are
origin.patch
linux-next.patch
wdt285-fix-sparse-warnings.patch
spi_s3c24xx-pin-configuration-updates.patch
resource-add-resource_type-and-ioresource_type_bits.patch
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