system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-20 11:07:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

UBIFS: fix incorrect unlocking handling

Browse source 
When ubifs_init_security() fails, 'ui_mutex' is incorrectly
unlocked and incorrectly restores 'i_size'. Fix this.

Signed-off-by: Taesoo Kim <tsgatesv@gmail.com>
Fixes: d7f0b70d30 ("UBIFS: Add security.* XATTR support for the UBIFS")
Reviewed-by: Ben Shelton <ben.shelton@ni.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Taesoo Kim 2015-03-25 09:53:37 +01:00 committed by Artem Bityutskiy
parent 3527a86b7a
commit 9401a795c6
1 changed files with 7 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
fs/ubifs/dir.c
View file

@ -272,7 +272,7 @@ static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err)
goto out_cancel;
goto out_inode;
mutex_lock(&dir_ui->ui_mutex);
dir->i_size += sz_change;
@ -292,6 +292,7 @@ static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
dir->i_size -= sz_change;
dir_ui->ui_size = dir->i_size;
mutex_unlock(&dir_ui->ui_mutex);
out_inode:
make_bad_inode(inode);
iput(inode);
out_budg:
@ -732,7 +733,7 @@ static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err)
goto out_cancel;
goto out_inode;
mutex_lock(&dir_ui->ui_mutex);
insert_inode_hash(inode);
@ -757,6 +758,7 @@ static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
dir_ui->ui_size = dir->i_size;
drop_nlink(dir);
mutex_unlock(&dir_ui->ui_mutex);
out_inode:
make_bad_inode(inode);
iput(inode);
out_budg:
@ -816,7 +818,7 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err)
goto out_cancel;
goto out_inode;
mutex_lock(&dir_ui->ui_mutex);
dir->i_size += sz_change;
@ -836,6 +838,7 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
dir->i_size -= sz_change;
dir_ui->ui_size = dir->i_size;
mutex_unlock(&dir_ui->ui_mutex);
out_inode:
make_bad_inode(inode);
iput(inode);
out_budg:
@ -896,7 +899,7 @@ static int ubifs_symlink(struct inode *dir, struct dentry *dentry,
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err)
goto out_cancel;
goto out_inode;
mutex_lock(&dir_ui->ui_mutex);
dir->i_size += sz_change;