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udf: Propagate errors from udf_truncate_extents()

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Make udf_truncate_extents() properly propagate errors to its callers and
let udf_setsize() handle the error properly as well. This lets userspace
know in case there's some error when truncating blocks.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara
2019-03-11 15:27:02 +01:00
parent d3ca4651d0
commit 2b42be5eb2
3 changed files with 8 additions and 5 deletions
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7
fs/udf/truncate.c
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@@ -199,7 +199,7 @@ static void udf_update_alloc_ext_desc(struct inode *inode,
* for making file shorter. For making file longer, udf_extend_file() has to
* be used.
*/
void udf_truncate_extents(struct inode *inode)
int udf_truncate_extents(struct inode *inode)
{
struct extent_position epos;
struct kernel_lb_addr eloc, neloc = {};
@@ -224,7 +224,7 @@ void udf_truncate_extents(struct inode *inode)
if (etype == -1) {
/* We should extend the file? */
WARN_ON(byte_offset);
return;
return 0;
}
epos.offset -= adsize;
extent_trunc(inode, &epos, &eloc, etype, elen, byte_offset);
@@ -262,7 +262,7 @@ void udf_truncate_extents(struct inode *inode)
udf_get_lb_pblock(sb, &eloc, 0));
/* Error reading indirect block? */
if (!epos.bh)
return;
return -EIO;
if (elen)
indirect_ext_len =
(elen + sb->s_blocksize - 1) >>
@@ -286,4 +286,5 @@ void udf_truncate_extents(struct inode *inode)
iinfo->i_lenExtents = inode->i_size;
brelse(epos.bh);
return 0;
}