[PATCH] __user annotations (booke_wdt.c)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/char/watchdog/booke_wdt.c b/drivers/char/watchdog/booke_wdt.c
index 65830ec71042..c800cce73c1e 100644
--- a/drivers/char/watchdog/booke_wdt.c
+++ b/drivers/char/watchdog/booke_wdt.c
@@ -72,7 +72,7 @@ static __inline__ void booke_wdt_ping(void)
 /*
  * 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)
 {
         booke_wdt_ping();
@@ -92,14 +92,15 @@ static int booke_wdt_ioctl (struct inode *inode, struct file *file,
                             unsigned int cmd, unsigned long arg)
 {
         u32 tmp = 0;
+        u32 __user *p = (u32 __user *)arg;
 
         switch (cmd) {
         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)))
                         return -EFAULT;
         case WDIOC_GETSTATUS:
-                return put_user(ident.options, (u32 *) arg);
+                return put_user(ident.options, p);
         case WDIOC_GETBOOTSTATUS:
                 /* XXX: something is clearing TSR */
                 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();
                 return 0;
         case WDIOC_SETTIMEOUT:
-                if (get_user(booke_wdt_period, (u32 *) arg))
+                if (get_user(booke_wdt_period, p))
                         return -EFAULT;
                 mtspr(SPRN_TCR, (mfspr(SPRN_TCR)&~WDTP(0))|WDTP(booke_wdt_period));
                 return 0;
         case WDIOC_GETTIMEOUT:
-                return put_user(booke_wdt_period, (u32 *) arg);
+                return put_user(booke_wdt_period, p);
         case WDIOC_SETOPTIONS:
-                if (get_user(tmp, (u32 *) arg))
+                if (get_user(tmp, p))
                         return -EINVAL;
                 if (tmp == WDIOS_ENABLECARD) {
                         booke_wdt_ping();