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Commit 0b6585ce authored by David Woodhouse's avatar David Woodhouse
Browse files

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



Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 668ff9ab

drivers/mtd/mtdchar.c

+2 −2
Original line number Diff line number Diff line
@@ -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();