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selinux: fix dentry_open() error check

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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: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Akinobu Mita 2006-11-27 15:16:48 +09:00 committed by James Morris
parent 2ea5814472
commit fc5d81e69d
1 changed files with 2 additions and 1 deletions
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3
security/selinux/hooks.c
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@ -1754,7 +1754,8 @@ static inline void flush_unauthorized_files(struct files_struct * files)
get_file(devnull);
} else {
devnull = dentry_open(dget(selinux_null), mntget(selinuxfs_mount), O_RDWR);
if (!devnull) {
if (IS_ERR(devnull)) {
devnull = NULL;
put_unused_fd(fd);
fput(file);
continue;