tests: Fix poll_cq_ex function

[ Upstream commit a4a7d80 ]

poll_cq_ex() function decrements the number of polled CQEs twice by
mistake. Fix the function to count correctly.

Fixes: 21134ab ("tests: Add timeout on polling completions")
Signed-off-by: Maxim Chicherin <maximc@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Nicolas Morey <nmorey@suse.com>

tests/utils.py

@@ -666,7 +666,6 @@ def poll_cq_ex(cqex, count=1, data=None, sgid=None):
             if isinstance(cqex, EfaCQ):
                 if sgid is not None and cqex.read_opcode() == e.IBV_WC_RECV:
                     assert sgid.gid == cqex.read_sgid().gid
-            count -= 1
         if count > 0:
             raise PyverbsError(f'Got timeout on polling ({count} CQEs remaining)')
     finally: