4.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: YueHaibing <[email protected]> [ Upstream commit ab4e32ff5aa797eaea551dbb67946e2fcb56cc7e ] bpf_object__open()/bpf_object__open_buffer can return error pointer or NULL, check the return values with IS_ERR_OR_NULL() in bpf__prepare_load and bpf__prepare_load_buffer Signed-off-by: YueHaibing <[email protected]> Acked-by: Daniel Borkmann <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- tools/perf/util/bpf-loader.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/tools/perf/util/bpf-loader.c +++ b/tools/perf/util/bpf-loader.c @@ -66,7 +66,7 @@ bpf__prepare_load_buffer(void *obj_buf, } obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, name); - if (IS_ERR(obj)) { + if (IS_ERR_OR_NULL(obj)) { pr_debug("bpf: failed to load buffer\n"); return ERR_PTR(-EINVAL); } @@ -102,14 +102,14 @@ struct bpf_object *bpf__prepare_load(con pr_debug("bpf: successfull builtin compilation\n"); obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, filename); - if (!IS_ERR(obj) && llvm_param.dump_obj) + if (!IS_ERR_OR_NULL(obj) && llvm_param.dump_obj) llvm__dump_obj(filename, obj_buf, obj_buf_sz); free(obj_buf); } else obj = bpf_object__open(filename); - if (IS_ERR(obj)) { + if (IS_ERR_OR_NULL(obj)) { pr_debug("bpf: failed to load %s\n", filename); return obj; }
