diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/base/devtmpfs.c | 98 | ||||
-rw-r--r-- | drivers/media/video/zoran/zoran.h | 4 | ||||
-rw-r--r-- | drivers/media/video/zoran/zoran_driver.c | 4 | ||||
-rw-r--r-- | drivers/mtd/mtdsuper.c | 4 |
4 files changed, 47 insertions, 63 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index 765c3a2..d91a3a0 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -227,33 +227,24 @@ static int handle_create(const char *nodename, umode_t mode, struct device *dev) static int dev_rmdir(const char *name) { - struct nameidata nd; + struct path parent; struct dentry *dentry; int err; - err = kern_path_parent(name, &nd); - if (err) - return err; - - mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT); - dentry = lookup_one_len(nd.last.name, nd.path.dentry, nd.last.len); - if (!IS_ERR(dentry)) { - if (dentry->d_inode) { - if (dentry->d_inode->i_private == &thread) - err = vfs_rmdir(nd.path.dentry->d_inode, - dentry); - else - err = -EPERM; - } else { - err = -ENOENT; - } - dput(dentry); + dentry = kern_path_locked(name, &parent); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + if (dentry->d_inode) { + if (dentry->d_inode->i_private == &thread) + err = vfs_rmdir(parent.dentry->d_inode, dentry); + else + err = -EPERM; } else { - err = PTR_ERR(dentry); + err = -ENOENT; } - - mutex_unlock(&nd.path.dentry->d_inode->i_mutex); - path_put(&nd.path); + dput(dentry); + mutex_unlock(&parent.dentry->d_inode->i_mutex); + path_put(&parent); return err; } @@ -305,50 +296,43 @@ static int dev_mynode(struct device *dev, struct inode *inode, struct kstat *sta static int handle_remove(const char *nodename, struct device *dev) { - struct nameidata nd; + struct path parent; struct dentry *dentry; - struct kstat stat; int deleted = 1; int err; - err = kern_path_parent(nodename, &nd); - if (err) - return err; + dentry = kern_path_locked(nodename, &parent); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); - mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT); - dentry = lookup_one_len(nd.last.name, nd.path.dentry, nd.last.len); - if (!IS_ERR(dentry)) { - if (dentry->d_inode) { - err = vfs_getattr(nd.path.mnt, dentry, &stat); - if (!err && dev_mynode(dev, dentry->d_inode, &stat)) { - struct iattr newattrs; - /* - * before unlinking this node, reset permissions - * of possible references like hardlinks - */ - newattrs.ia_uid = 0; - newattrs.ia_gid = 0; - newattrs.ia_mode = stat.mode & ~0777; - newattrs.ia_valid = - ATTR_UID|ATTR_GID|ATTR_MODE; - mutex_lock(&dentry->d_inode->i_mutex); - notify_change(dentry, &newattrs); - mutex_unlock(&dentry->d_inode->i_mutex); - err = vfs_unlink(nd.path.dentry->d_inode, - dentry); - if (!err || err == -ENOENT) - deleted = 1; - } - } else { - err = -ENOENT; + if (dentry->d_inode) { + struct kstat stat; + err = vfs_getattr(parent.mnt, dentry, &stat); + if (!err && dev_mynode(dev, dentry->d_inode, &stat)) { + struct iattr newattrs; + /* + * before unlinking this node, reset permissions + * of possible references like hardlinks + */ + newattrs.ia_uid = 0; + newattrs.ia_gid = 0; + newattrs.ia_mode = stat.mode & ~0777; + newattrs.ia_valid = + ATTR_UID|ATTR_GID|ATTR_MODE; + mutex_lock(&dentry->d_inode->i_mutex); + notify_change(dentry, &newattrs); + mutex_unlock(&dentry->d_inode->i_mutex); + err = vfs_unlink(parent.dentry->d_inode, dentry); + if (!err || err == -ENOENT) + deleted = 1; } - dput(dentry); } else { - err = PTR_ERR(dentry); + err = -ENOENT; } - mutex_unlock(&nd.path.dentry->d_inode->i_mutex); + dput(dentry); + mutex_unlock(&parent.dentry->d_inode->i_mutex); - path_put(&nd.path); + path_put(&parent); if (deleted && strchr(nodename, '/')) delete_path(nodename); return err; diff --git a/drivers/media/video/zoran/zoran.h b/drivers/media/video/zoran/zoran.h index d7166af..ca2754a 100644 --- a/drivers/media/video/zoran/zoran.h +++ b/drivers/media/video/zoran/zoran.h @@ -172,8 +172,10 @@ struct zoran_jpg_settings { struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */ }; +struct zoran_fh; + struct zoran_mapping { - struct file *file; + struct zoran_fh *fh; int count; }; diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c index c573109..c6ccdeb 100644 --- a/drivers/media/video/zoran/zoran_driver.c +++ b/drivers/media/video/zoran/zoran_driver.c @@ -2811,7 +2811,7 @@ static void zoran_vm_close (struct vm_area_struct *vma) { struct zoran_mapping *map = vma->vm_private_data; - struct zoran_fh *fh = map->file->private_data; + struct zoran_fh *fh = map->fh; struct zoran *zr = fh->zr; int i; @@ -2938,7 +2938,7 @@ zoran_mmap (struct file *file, res = -ENOMEM; goto mmap_unlock_and_return; } - map->file = file; + map->fh = fh; map->count = 1; vma->vm_ops = &zoran_vm_ops; diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c index a90bfe7..334da5f 100644 --- a/drivers/mtd/mtdsuper.c +++ b/drivers/mtd/mtdsuper.c @@ -63,7 +63,7 @@ static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags, struct super_block *sb; int ret; - sb = sget(fs_type, get_sb_mtd_compare, get_sb_mtd_set, mtd); + sb = sget(fs_type, get_sb_mtd_compare, get_sb_mtd_set, flags, mtd); if (IS_ERR(sb)) goto out_error; @@ -74,8 +74,6 @@ static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags, pr_debug("MTDSB: New superblock for device %d (\"%s\")\n", mtd->index, mtd->name); - sb->s_flags = flags; - ret = fill_super(sb, data, flags & MS_SILENT ? 1 : 0); if (ret < 0) { deactivate_locked_super(sb); |