Author: Julia Lawall <Julia.Lawall@lip6.fr> !x is more normal for kzalloc failure in the kernel. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ expression x; statement S1, S2; @@ x = kzalloc(…); if ( – x == NULL + !x ) S1 else S2 // Signed-off-by: Julia Lawall Signed-off-by: Greg Kroah-Hartman …