switch alloc_file() to passing struct path

... and have the caller grab both mnt and dentry; kill
leak in infiniband, while we are at it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 5 insertions, 5 deletions

diff --git a/ipc/shm.c b/ipc/shm.c
index 11bec626c228..16e39230aa0d 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -878,8 +878,8 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
         if (err)
                 goto out_unlock;
 
-        path.dentry = dget(shp->shm_file->f_path.dentry);
-        path.mnt    = shp->shm_file->f_path.mnt;
+        path = shp->shm_file->f_path;
+        path_get(&path);
         shp->shm_nattch++;
         size = i_size_read(path.dentry->d_inode);
         shm_unlock(shp);
@@ -889,8 +889,8 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
         if (!sfd)
                 goto out_put_dentry;
 
-        file = alloc_file(path.mnt, path.dentry, f_mode,
-                        is_file_hugepages(shp->shm_file) ?
+        file = alloc_file(&path, f_mode,
+                          is_file_hugepages(shp->shm_file) ?
                                 &shm_file_operations_huge :
                                 &shm_file_operations);
         if (!file)
@@ -950,7 +950,7 @@ out_unlock:
 out_free:
         kfree(sfd);
 out_put_dentry:
-        dput(path.dentry);
+        path_put(&path);
         goto out_nattch;
 }