sergiotarxz/nuttx
sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

fs/vfs: fix case when file to rename does not exist

Browse Source 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
This commit is contained in:
Petro Karashchenko 2022-10-14 16:44:26 +02:00 committed by Xiang Xiao
parent 4e3aa83706
commit 969a06331f
1 changed files with 21 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
fs/vfs/fs_rename.c
View File

@ -397,17 +397,30 @@ next_subdir:
goto next_subdir;
}
else if (oldinode->u.i_mops->unlink)
else
{
/* No.. newrelpath must refer to a regular file. Attempt
* to remove the file before doing the rename.
*
* NOTE that errors are not handled here. If we failed to
* remove the file, then the file system 'rename' method
* should check that.
/* No.. newrelpath must refer to a regular file. Make sure
* that the file at the olrelpath actually exists before
* performing any further actions with newrelpath
*/
oldinode->u.i_mops->unlink(oldinode, newrelpath);
ret = oldinode->u.i_mops->stat(oldinode, oldrelpath, &buf);
if (ret < 0)
{
goto errout_with_newinode;
}
if (oldinode->u.i_mops->unlink)
{
/* Attempt to remove the file before doing the rename.
*
* NOTE that errors are not handled here. If we failed
* to remove the file, then the file system 'rename'
* method should check that.
*/
oldinode->u.i_mops->unlink(oldinode, newrelpath);
}
}
}
}