IB/mthca: Remove checks for srq->first_free < 0
IB/mthca: Remove checks for srq->first_free < 0

The SRQ receive posting functions make sure that srq->first_free never
becomes negative, so we can remove tests of whether it is negative.

Signed-off-by: Eli Cohen <3ca62a2ad87376be2697209a1770e1afdbbba220@mellanox.co.il>
Signed-off-by: Roland Dreier <91e9b5f7ca0bb6300133ed378670d64af90dde66@cisco.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas