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[PATCH] __user annotations (booke_wdt.c)

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Al Viro 2005-12-15 09:18:20 +00:00 committed by Linus Torvalds
parent d22043940e
commit 538bacf8a4
1 changed files with 7 additions and 6 deletions
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13
drivers/char/watchdog/booke_wdt.c
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@ -72,7 +72,7 @@ static __inline__ void booke_wdt_ping(void)
/* /*
* booke_wdt_write: * booke_wdt_write:
*/ */
static ssize_t booke_wdt_write (struct file *file, const char *buf, static ssize_t booke_wdt_write (struct file *file, const char __user *buf,
size_t count, loff_t *ppos) size_t count, loff_t *ppos)
{ {
booke_wdt_ping(); booke_wdt_ping();
@ -92,14 +92,15 @@ static int booke_wdt_ioctl (struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg) unsigned int cmd, unsigned long arg)
{ {
u32 tmp = 0; u32 tmp = 0;
u32 __user *p = (u32 __user *)arg;
switch (cmd) { switch (cmd) {
case WDIOC_GETSUPPORT: case WDIOC_GETSUPPORT:
if (copy_to_user ((struct watchdog_info *) arg, &ident, if (copy_to_user ((struct watchdog_info __user *) arg, &ident,
sizeof(struct watchdog_info))) sizeof(struct watchdog_info)))
return -EFAULT; return -EFAULT;
case WDIOC_GETSTATUS: case WDIOC_GETSTATUS:
return put_user(ident.options, (u32 *) arg); return put_user(ident.options, p);
case WDIOC_GETBOOTSTATUS: case WDIOC_GETBOOTSTATUS:
/* XXX: something is clearing TSR */ /* XXX: something is clearing TSR */
tmp = mfspr(SPRN_TSR) & TSR_WRS(3); tmp = mfspr(SPRN_TSR) & TSR_WRS(3);
@ -109,14 +110,14 @@ static int booke_wdt_ioctl (struct inode *inode, struct file *file,
booke_wdt_ping(); booke_wdt_ping();
return 0; return 0;
case WDIOC_SETTIMEOUT: case WDIOC_SETTIMEOUT:
if (get_user(booke_wdt_period, (u32 *) arg)) if (get_user(booke_wdt_period, p))
return -EFAULT; return -EFAULT;
mtspr(SPRN_TCR, (mfspr(SPRN_TCR)&~WDTP(0))|WDTP(booke_wdt_period)); mtspr(SPRN_TCR, (mfspr(SPRN_TCR)&~WDTP(0))|WDTP(booke_wdt_period));
return 0; return 0;
case WDIOC_GETTIMEOUT: case WDIOC_GETTIMEOUT:
return put_user(booke_wdt_period, (u32 *) arg); return put_user(booke_wdt_period, p);
case WDIOC_SETOPTIONS: case WDIOC_SETOPTIONS:
if (get_user(tmp, (u32 *) arg)) if (get_user(tmp, p))
return -EINVAL; return -EINVAL;
if (tmp == WDIOS_ENABLECARD) { if (tmp == WDIOS_ENABLECARD) {
booke_wdt_ping(); booke_wdt_ping();