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-rw-r--r--ipc/mqueue.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 15eabf9..3853116 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -657,24 +657,28 @@ out:
static struct file *do_open(struct ipc_namespace *ipc_ns,
struct dentry *dentry, int oflag)
{
+ int ret;
const struct cred *cred = current_cred();
static const int oflag2acc[O_ACCMODE] = { MAY_READ, MAY_WRITE,
MAY_READ | MAY_WRITE };
if ((oflag & O_ACCMODE) == (O_RDWR | O_WRONLY)) {
- dput(dentry);
- mntput(ipc_ns->mq_mnt);
- return ERR_PTR(-EINVAL);
+ ret = -EINVAL;
+ goto err;
}
if (inode_permission(dentry->d_inode, oflag2acc[oflag & O_ACCMODE])) {
- dput(dentry);
- mntput(ipc_ns->mq_mnt);
- return ERR_PTR(-EACCES);
+ ret = -EACCES;
+ goto err;
}
return dentry_open(dentry, ipc_ns->mq_mnt, oflag, cred);
+
+err:
+ dput(dentry);
+ mntput(ipc_ns->mq_mnt);
+ return ERR_PTR(ret);
}
SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode,
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