Commit 2b10074d authored by Jan Kara's avatar Jan Kara
Browse files

udf: Handle error when adding extent to symlink 



When adding extent describing symlink data fails, make sure to handle
the error properly, propagate it up and free the already allocated
block.

Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 33e9a53c

fs/udf/namei.c

+6 −1
Original line number Diff line number Diff line
@@ -613,8 +613,12 @@ static int udf_symlink(struct user_namespace *mnt_userns, struct inode *dir, 
				iinfo->i_location.partitionReferenceNum;

		bsize = sb->s_blocksize;

		iinfo->i_lenExtents = bsize;

		udf_add_aext(inode, &epos, &eloc, bsize, 0);

		err = udf_add_aext(inode, &epos, &eloc, bsize, 0);

		brelse(epos.bh);

		if (err < 0) {

			udf_free_blocks(sb, inode, &eloc, 0, 1);

			goto out_no_entry;

		}



		block = udf_get_pblock(sb, block,

				iinfo->i_location.partitionReferenceNum,
@@ -622,6 +626,7 @@ static int udf_symlink(struct user_namespace *mnt_userns, struct inode *dir, 
		epos.bh = udf_tgetblk(sb, block);

		if (unlikely(!epos.bh)) {

			err = -ENOMEM;

			udf_free_blocks(sb, inode, &eloc, 0, 1);

			goto out_no_entry;

		}

		lock_buffer(epos.bh);