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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-05-29 16:09:08 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-05-29 16:09:08 +0100
commit0b6585ce05f169f10ce74329e87bd8c5070b4bb9 (patch)
tree0a46ceba501368499c9cb9e79b087e9a2235868a
parent668ff9ab45d595222d3f90d7974ccba3518e3bb3 (diff)
mtd: Fix pointer handling in compat ioctls to use compat_ptr()
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
-rw-r--r--drivers/mtd/mtdchar.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 5fff04f3303..5b081cb8435 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -839,7 +839,7 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
struct inode *inode = file->f_path.dentry->d_inode;
struct mtd_file_info *mfi = file->private_data;
struct mtd_info *mtd = mfi->mtd;
- void __user *argp = (void __user *)arg;
+ void __user *argp = compat_ptr(arg);
int ret = 0;
lock_kernel();
@@ -874,7 +874,7 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
break;
}
default:
- ret = mtd_ioctl(inode, file, cmd, arg);
+ ret = mtd_ioctl(inode, file, cmd, (unsigned long)argp);
}
unlock_kernel();