Xiyu Yang 8aebfffacf configfs: fix config_item refcnt leak in configfs_rmdir() ... configfs_rmdir() invokes configfs_get_config_item(), which returns a reference of the specified config_item object to "parent_item" with increased refcnt. When configfs_rmdir() returns, local variable "parent_item" becomes invalid, so the refcount should be decreased to keep refcount balanced. The reference counting issue happens in one exception handling path of configfs_rmdir(). When down_write_killable() fails, the function forgets to decrease the refcnt increased by configfs_get_config_item(), causing a refcnt leak. Fix this issue by calling config_item_put() when down_write_killable() fails. Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de>		2020-04-27 08:17:10 +02:00
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configfs_internal.h
dir.c	configfs: fix config_item refcnt leak in configfs_rmdir()	2020-04-27 08:17:10 +02:00
file.c
inode.c
item.c
Kconfig
Makefile
mount.c
symlink.c