[PATCH 3.16 155/217] USB: mct_u232: add sanity checking in probe

3.16.35-rc1 review patch. If anyone has any objections, please let me know. -- From: Oliver Neukum commit 4e9a0b05257f29cf4b75f3209243ed71614d062e upstream. An attack using the lack of sanity checking in probe is known. This patch checks for the existence of

[PATCH 3.16 155/217] USB: mct_u232: add sanity checking in probe

3.16.35-rc1 review patch. If anyone has any objections, please let me know. -- From: Oliver Neukum commit 4e9a0b05257f29cf4b75f3209243ed71614d062e upstream. An attack using the lack of sanity checking in probe is known. This patch checks for the existence of a second port.