mtd: Fix pointer handling in compat ioctls to use compat_ptr() (0b6585ce) · Commits · 戴 / test

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();