USB: serial: kobil_sct: fix NULL-deref in write
commit 21ce5784 upstream. Fix NULL-pointer dereference in write() should the device lack the expected interrupt-out endpoint: Unable to handle kernel NULL pointer dereference at virtual address 00000054 ... PC is at kobil_write+0x144/0x2a0 [kobil_sct] Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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