The following coccinelle script found the match:

@@
expression E0, E1, E2;
statement S0, S1;
@@
- if ((E1 = E2) != E0)
+ E1 = E2;
+ if (E1 != E0)
S0 else S1
Signed-off-by: Chi Pham <fempsci@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>