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(parent: a02a743) | patch
USB: serial: keyspan_pda: verify endpoints at probe
authorJohan Hovold <johan@kernel.org>
Tue, 3 Jan 2017 15:39:48 +0000 (16:39 +0100)
committerJohan Hovold <johan@kernel.org>
Wed, 4 Jan 2017 09:37:18 +0000 (10:37 +0100)
commitf7fe9b59eb4f61c85dcff3cb72b5178a6da39084
treefc78ef1e46e3105e493b57a09a1a6558baede932tree | snapshot
parenta02a743c3cee8686f52fa37c14ff207263029abdcommit | diff
USB: serial: keyspan_pda: verify endpoints at probe

Check for the expected endpoints in attach() and fail loudly if not
present.

Note that failing to do this appears to be benign since 1c12882b50e9
("USB: keyspan_pda: clean up write-urb busy handling") which prevents a
NULL-pointer dereference in write() by never marking a non-existent
write-urb as free.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org> # < v3.3
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/keyspan_pda.c diff | blob | history
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