1 files changed, 10 insertions, 3 deletions

diff --git a/fs/open.c b/fs/open.c
index 4197b9ed023d..5a2c6ebc22b5 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -223,7 +223,12 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
                 return -EINVAL;
 
         /* Return error if mode is not supported */
-        if (mode && !(mode & FALLOC_FL_KEEP_SIZE))
+        if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+                return -EOPNOTSUPP;
+
+        /* Punch hole must have keep size set */
+        if ((mode & FALLOC_FL_PUNCH_HOLE) &&
+            !(mode & FALLOC_FL_KEEP_SIZE))
                 return -EOPNOTSUPP;
 
         if (!(file->f_mode & FMODE_WRITE))
@@ -250,10 +255,10 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
         if (((offset + len) > inode->i_sb->s_maxbytes) || ((offset + len) < 0))
                 return -EFBIG;
 
-        if (!inode->i_op->fallocate)
+        if (!file->f_op->fallocate)
                 return -EOPNOTSUPP;
 
-        return inode->i_op->fallocate(inode, mode, offset, len);
+        return file->f_op->fallocate(file, mode, offset, len);
 }
 
 SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
@@ -785,6 +790,8 @@ struct file *nameidata_to_filp(struct nameidata *nd)
 
         /* Pick up the filp from the open intent */
         filp = nd->intent.open.file;
+        nd->intent.open.file = NULL;
+
         /* Has the filesystem initialised the file for us? */
         if (filp->f_path.dentry == NULL) {
                 path_get(&nd->path);