提交 fc5d81e6 编写于 作者: A Akinobu Mita 提交者: James Morris

selinux: fix dentry_open() error check

The return value of dentry_open() shoud be checked by IS_ERR().

Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: NJames Morris <jmorris@namei.org>
上级 2ea58144
...@@ -1754,7 +1754,8 @@ static inline void flush_unauthorized_files(struct files_struct * files) ...@@ -1754,7 +1754,8 @@ static inline void flush_unauthorized_files(struct files_struct * files)
get_file(devnull); get_file(devnull);
} else { } else {
devnull = dentry_open(dget(selinux_null), mntget(selinuxfs_mount), O_RDWR); devnull = dentry_open(dget(selinux_null), mntget(selinuxfs_mount), O_RDWR);
if (!devnull) { if (IS_ERR(devnull)) {
devnull = NULL;
put_unused_fd(fd); put_unused_fd(fd);
fput(file); fput(file);
continue; continue;
......
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