diff options
| -rw-r--r-- | security/smack/smackfs.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c index ca257dfdc75..247dc9ebbc7 100644 --- a/security/smack/smackfs.c +++ b/security/smack/smackfs.c @@ -185,11 +185,15 @@ static int smk_open_load(struct inode *inode, struct file *file) * the subject/object pair and replaces the access that was * there. If the pair isn't found add it with the specified * access. + * + * Returns 0 if nothing goes wrong or -ENOMEM if it fails + * during the allocation of the new pair to add. */ -static void smk_set_access(struct smack_rule *srp) +static int smk_set_access(struct smack_rule *srp) { struct smk_list_entry *sp; struct smk_list_entry *newp; + int ret = 0; mutex_lock(&smack_list_lock); @@ -202,14 +206,20 @@ static void smk_set_access(struct smack_rule *srp) if (sp == NULL) { newp = kzalloc(sizeof(struct smk_list_entry), GFP_KERNEL); + if (newp == NULL) { + ret = -ENOMEM; + goto out; + } + newp->smk_rule = *srp; newp->smk_next = smack_list; smack_list = newp; } +out: mutex_unlock(&smack_list_lock); - return; + return ret; } /** @@ -309,8 +319,10 @@ static ssize_t smk_write_load(struct file *file, const char __user *buf, goto out; } - smk_set_access(&rule); - rc = count; + rc = smk_set_access(&rule); + + if (!rc) + rc = count; out: kfree(data); |