These patches fix cases where a called function frees some data and the calling context frees the same data.
The complete semantic match is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ parameter list[n] ps; type T; identifier a; expression e; expression ret != 0; identifier f,free; position p1; @@ f(ps,T a,...) { ... when any when != a = e if(...) { ... free@p1(a); ... return ret; } ... when any } @s exists@ identifier r.f,r.free; expression x,a; position p2,p3; expression list[r.n] xs; @@ x = f@p2(xs,a,...); if (...) { ... free@p3(a); ... return ...; } @script:python@ p1 << r.p1; p2 << s.p2; p3 << s.p3; @@ cocci.print_main("",p1) cocci.print_secs("",p2) cocci.print_secs("",p3) // </smpl> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
