From 0b6585ce05f169f10ce74329e87bd8c5070b4bb9 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Fri, 29 May 2009 16:09:08 +0100 Subject: [PATCH] mtd: Fix pointer handling in compat ioctls to use compat_ptr() Signed-off-by: David Woodhouse --- drivers/mtd/mtdchar.c | 4 ++-- 1 file 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();