usb-storage: Add compatibility quirk flags for iODD 2531/2541

commit 05c8f1b67e67dcd786ae3fe44492bbc617b4bd12 upstream.

These drive enclosures have firmware bugs that make it impossible to mount
a new virtual ISO image after Linux ejects the old one if the device is
locked by Linux. Windows bypasses this problem by the fact that they do
not lock the device. Add a quirk to disable device locking for these
drive enclosures.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Buren <braewoods+lkml@braewoods.net>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211014015504.2695089-1-braewoods+lkml@braewoods.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 2c2ac15d25549f78971d0e531eb5fbcde5f149be..52895c462d7d90ff1cf842fe44913479ba8ef69f 100644 (file)
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -310,6 +310,16 @@ UNUSUAL_DEV(  0x045e, 0xffff, 0x0000, 0x0000,
                USB_SC_DEVICE, USB_PR_DEVICE, NULL,
                US_FL_MAX_SECTORS_64 ),
 
+/*
+ * Reported by James Buren <braewoods+lkml@braewoods.net>
+ * Virtual ISOs cannot be remounted if ejected while the device is locked
+ * Disable locking to mimic Windows behavior that bypasses the issue
+ */
+UNUSUAL_DEV(  0x04c5, 0x2028, 0x0001, 0x0001,
+               "iODD",
+               "2531/2541",
+               USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE),
+
 /*
  * This virtual floppy is found in Sun equipment (x4600, x4200m2, etc.)
  * Reported by Pete Zaitcev <zaitcev@redhat.com>