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mtd: Fix pointer handling in compat ioctls to use compat_ptr()

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Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse 2009-05-29 16:09:08 +01:00
parent 668ff9ab45
commit 0b6585ce05
1 changed files with 2 additions and 2 deletions
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4
drivers/mtd/mtdchar.c
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@ -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 inode *inode = file->f_path.dentry->d_inode;
struct mtd_file_info *mfi = file->private_data; struct mtd_file_info *mfi = file->private_data;
struct mtd_info *mtd = mfi->mtd; struct mtd_info *mtd = mfi->mtd;
void __user *argp = (void __user *)arg; void __user *argp = compat_ptr(arg);
int ret = 0; int ret = 0;
lock_kernel(); lock_kernel();
@ -874,7 +874,7 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
break; break;
} }
default: default:
ret = mtd_ioctl(inode, file, cmd, arg); ret = mtd_ioctl(inode, file, cmd, (unsigned long)argp);
} }
unlock_kernel(); unlock_kernel();