1 files changed, 10 insertions, 0 deletions

diff --git a/fs/udf/file.c b/fs/udf/file.c
index 78d42548b260..35e81ed99405 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -151,7 +151,17 @@ static ssize_t udf_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
         } else
                 up_write(&iinfo->i_data_sem);
 
+        retval = generic_write_checks(file, &iocb->ki_pos, &count, 0);
+        if (retval)
+                goto out;
+
+        if (count == 0)
+                goto out;
+
+        iov_iter_truncate(from, count);
+
         retval = __generic_file_write_iter(iocb, from);
+out:
         mutex_unlock(&inode->i_mutex);
 
         if (retval > 0) {