hso: Fix crashes on close.

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Moved serial_open_count in hso_serial_open to
prevent crashes owing to the serial structure being made NULL
when hso_serial_close is called even though hso_serial_open
returned -ENODEV, Alan Cox pointed out this happens,
also put in sanity check in hso_serial_close
to check for a valid serial structure which should prevent
the most reproducable crash in the driver when the hso device
is disconnected while in use.

Signed-off-by: Denis Joseph Barrow <D.Barow@option.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Denis Joseph Barrow 2008-11-25 00:27:50 -08:00 • committed by David S. Miller

parent bab04c3adb

commit 4a3e818181

1 changed files with 9 additions and 2 deletions

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11

drivers/net/usb/hso.c

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