Fix removable USB drive support in Haiku

0001-usb_disk-Don-t-synchronize-cache-or-read-if-no-media.patch

From a92b332589eda8cf391ab8dd308fd1ee670c596f Mon Sep 17 00:00:00 2001
From: "Mika T. Lindqvist" <[email protected]>
Date: Mon, 16 Dec 2024 22:44:00 +0200
Subject: [PATCH] usb_disk: Don't synchronize cache or read if no media
 present.

---
 .../kernel/drivers/disk/usb/usb_disk/usb_disk.cpp        | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/add-ons/kernel/drivers/disk/usb/usb_disk/usb_disk.cpp b/src/add-ons/kernel/drivers/disk/usb/usb_disk/usb_disk.cpp
index 3f53fbd8ec..92635ef5b8 100644
--- a/src/add-ons/kernel/drivers/disk/usb/usb_disk/usb_disk.cpp
+++ b/src/add-ons/kernel/drivers/disk/usb/usb_disk/usb_disk.cpp
@@ -691,7 +691,7 @@ usb_disk_request_sense(device_lun *lun, err_act *_action)
 	} else if (parameter.sense_key == SCSI_SENSE_KEY_UNIT_ATTENTION
 		&& status != B_DEV_NO_MEDIA) {
 		lun->media_present = true;
-	} else if (status == B_DEV_NOT_READY) {
+	} else if (status == B_DEV_NOT_READY || status == B_DEV_NO_MEDIA) {
 		lun->media_present = false;
 		usb_disk_reset_capacity(lun);
 	}
@@ -985,6 +985,9 @@ usb_disk_synchronize(device_lun *lun, bool force)
 	if (!lun->should_sync && !force)
 		return B_OK;
 
+	if (!lun->media_present)
+		return B_DEV_NO_MEDIA;
+
 	uint8 commandBlock[12];
 	memset(commandBlock, 0, sizeof(commandBlock));
 
@@ -1279,6 +1282,10 @@ usb_disk_block_read(device_lun *lun, uint64 blockPosition, size_t blockCount,
 {
 	uint8 commandBlock[16];
 	memset(commandBlock, 0, sizeof(commandBlock));
+
+	if (!lun->media_present)
+		return B_DEV_NO_MEDIA;
+
 	if (lun->device->is_ufi) {
 		commandBlock[0] = SCSI_READ_12;
 		commandBlock[1] = lun->logical_unit_number << 5;
-- 
2.43.0