staging: gigaset: fix illegal free on probe errors
authorJohan Hovold <johan@kernel.org>
Mon, 2 Dec 2019 08:56:09 +0000 (09:56 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 10 Dec 2019 10:08:07 +0000 (11:08 +0100)
commit84f60ca7b326ed8c08582417493982fe2573a9ad
tree66fa4a11e401c928e5e428dc7100f8579d06903d
parent53f35a39c3860baac1e5ca80bf052751cfb24a99
staging: gigaset: fix illegal free on probe errors

The driver failed to initialise its receive-buffer pointer, something
which could lead to an illegal free on late probe errors.

Fix this by making sure to clear all driver data at allocation.

Fixes: 2032e2c2309d ("usb_gigaset: code cleanup")
Cc: stable <stable@vger.kernel.org> # 2.6.33
Cc: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191202085610.12719-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/isdn/gigaset/usb-gigaset.c