Author: Haneen Mohammed <hamohammed.sa@gmail.com> This patch replace dev_err with pr_err, for pointer is derefrenced after comparing it to NULL. This was found using the following coccinelle script: @disable is_null@ identifier f; expression E; identifier fld; statement S; @@ + if(E == NULL) S f(…,E->fld,…); -if(E == NULL) S; @@ identifier f; expression E; identifier fld; …