[PATCH] floppy driver oopses on forced unload (against 2.5.65)

[Angus Sawyer]

Prevent OOPS on removing floppy driver with "rmmod -f floppy".

floppy.c would attempt to unregister resources for nonexistent device.  

Patch stops the driver attempting to register and unregister the nonexistent 
device by removing the drive from the allowed drives mask (defaults to 
present). 

 drivers/block/floppy.c |    2 ++
 1 files changed, 2 insertions(+)

diff -puN drivers/block/floppy.c~floppy-unload-fix drivers/block/floppy.c
--- linux-2.5.65/drivers/block/floppy.c~floppy-unload-fix	Wed Mar 19 18:44:15 
2003
+++ linux-2.5.65-/drivers/block/floppy.c	Wed Mar 19 21:33:22 2003
@@ -3649,6 +3649,8 @@ static void __init config_types(void)
 				name = default_drive_params[type].name;
 				allowed_drive_mask |= 1 << drive;
 			}
+			else
+				allowed_drive_mask &= ~(1 << drive);
 		} else {
 			params = &default_drive_params[0].params;
 			sprintf(temparea, "unknown type %d (usb?)", type);

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