[PATCH] ext4: crypto return correct error for file_mmap when get_encryption_info failed.

[Xu Cang <cangxumu@xxxxxxxxx>]

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 113837e..1c0086a 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -295,7 +295,7 @@ static int ext4_file_mmap(struct file *file,
struct vm_area_struct *vma)
        if (ext4_encrypted_inode(inode)) {
                int err = ext4_get_encryption_info(inode);
                if (err)
-                       return 0;
+                       return -EACCES;
                if (ext4_encryption_info(inode) == NULL)
                        return -ENOKEY;
        }
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