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| author |   Hans de Goede <hdegoede@redhat.com> | 2016-03-07 20:11:52 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-18 09:19:02 -0700 |
| commit | 55ff8cfbc4e12a7d2187df523938cc671fbebdd1 (patch) | |
| tree | 4516e36572fa6e8e3cf8f4044df384289180b9de /drivers/usb | |
| parent | USB: cdc-acm: more sanity checking (diff) | |
| download | linux-dev-55ff8cfbc4e12a7d2187df523938cc671fbebdd1.tar.xz linux-dev-55ff8cfbc4e12a7d2187df523938cc671fbebdd1.zip | |
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: Yves-Alexis Perez <corsac@corsac.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/storage/uas.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 44b096c1737b..13e4cc31bc79 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -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, |