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Commit 55ff8cfb authored by Hans de Goede's avatar Hans de Goede Committed by Greg Kroah-Hartman
Browse files

USB: uas: Reduce can_queue to MAX_CMNDS 



The uas driver can never queue more then MAX_CMNDS (- 1) tags and tags
are shared between luns, so there is no need to claim that we can_queue
some random large number.

Not claiming that we can_queue 65536 commands, fixes the uas driver
failing to initialize while allocating the tag map with a "Page allocation
failure (order 7)" error on systems which have been running for a while
and thus have fragmented memory.

Cc: stable@vger.kernel.org
Reported-and-tested-by: default avatarYves-Alexis Perez <corsac@corsac.net>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8835ba4a

drivers/usb/storage/uas.c

+1 −1
Original line number Diff line number Diff line
@@ -836,7 +836,7 @@ static struct scsi_host_template uas_host_template = { 
	.slave_configure = uas_slave_configure,

	.eh_abort_handler = uas_eh_abort_handler,

	.eh_bus_reset_handler = uas_eh_bus_reset_handler,

	.can_queue = 65536,	/* Is there a limit on the _host_ ? */

	.can_queue = MAX_CMNDS,

	.this_id = -1,

	.sg_tablesize = SG_NONE,

	.skip_settle_delay = 1,