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authorMatthew Dharm <mdharm-usb@one-eyed-alien.net>2005-07-28 14:44:29 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2005-09-08 16:22:54 -0700
commit77f46328fb83b64befd889ebce6d7fb959932509 (patch)
treec06b5e60d8463e548b49c73799b2327ecc4f09de /Documentation/paride.txt
parent0f64e078139109d1902e5b1274c23cec9a9ad12e (diff)
[PATCH] USB Storage: close a race condition in disconnect near probe
This patch started life as as533, and has been re-diffed against the current tree. Disconnect processing in usb-storage naturally divides into two parts: one to quiesce the driver (make sure no commands are executing or queued) and remove the host, and the other to deallocate all the USB and non-USB resources. This patch creates two subroutines to handle those two parts. Mostly it's just code movement, but there is one significant change. If the scsi-scanning thread fails to initialize but the host has successfully been added, we need to quiesce the driver before removing the host. After all, it's possible that scanning could have been initiated from somewhere else, such as userspace -- very low probability, but it's easily handled by calling the new subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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