USB: atm: ueagle-atm: add missing endpoint check
commit 09068c1ad53fb077bdac288869dec2435420bdc4 upstream. Make sure that the interrupt interface has an endpoint before trying to access its endpoint descriptors to avoid dereferencing a NULL pointer. The driver binds to the interrupt interface with interface number 0, but must not assume that this interface or its current alternate setting are the first entries in the corresponding configuration arrays. Fixes: b72458a8 ("[PATCH] USB: Eagle and ADI 930 usb adsl modem driver") Cc: stable <stable@vger.kernel.org> # 2.6.16 Signed-off-by: NJohan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191210112601.3561-2-johan@kernel.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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