From c560cfddca5477e18d80024ef8ca49c4f16e8e12 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Fri, 9 Apr 2021 09:45:28 +0200
Subject: [PATCH] tape: read_drive_status - ignore media changed sense info

---
 src/tape/drive/lto/sg_tape.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/tape/drive/lto/sg_tape.rs b/src/tape/drive/lto/sg_tape.rs
index b7cd677f..5ef77922 100644
--- a/src/tape/drive/lto/sg_tape.rs
+++ b/src/tape/drive/lto/sg_tape.rs
@@ -44,6 +44,7 @@ use crate::{
         alloc_page_aligned_buffer,
         scsi_inquiry,
         scsi_mode_sense,
+        scsi_request_sense,
     },
 };
 
@@ -657,6 +658,10 @@ impl SgTape {
     /// block_descriptor. This is all information we need for now.
     pub fn read_drive_status(&mut self) -> Result<LtoTapeStatus, Error> {
 
+        // We do a Request Sense, but ignore the result.
+        // This clears deferred error or media changed events.
+        let _ = scsi_request_sense(&mut self.file);
+
         let (head, block_descriptor, page) = self.read_compression_page()?;
 
         Ok(LtoTapeStatus {