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Date: Sat, 30 Dec 2017 13:07:15 -0800 From: tip-bot for Simon Ser <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: mingo@...nel.org, tglx@...utronix.de, jpoimboe@...hat.com, contact@...rsion.fr, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, peterz@...radead.org, hpa@...or.com Subject: [tip:core/urgent] objtool: Fix seg fault caused by missing parameter Commit-ID: d89e426499cf36b96161bd32970d6783f1fbcb0e Gitweb: https://git.kernel.org/tip/d89e426499cf36b96161bd32970d6783f1fbcb0e Author: Simon Ser <contact@...rsion.fr> AuthorDate: Sat, 30 Dec 2017 14:43:31 -0600 Committer: Ingo Molnar <mingo@...nel.org> CommitDate: Sat, 30 Dec 2017 22:04:17 +0100 objtool: Fix seg fault caused by missing parameter Fix a seg fault when no parameter is provided to 'objtool orc'. Signed-off-by: Simon Ser <contact@...rsion.fr> Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Thomas Gleixner <tglx@...utronix.de> Link: http://lkml.kernel.org/r/9172803ec7ebb72535bcd0b7f966ae96d515968e.1514666459.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@...nel.org> --- tools/objtool/builtin-orc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/objtool/builtin-orc.c b/tools/objtool/builtin-orc.c index 4c6b5c9..91e8e19 100644 --- a/tools/objtool/builtin-orc.c +++ b/tools/objtool/builtin-orc.c @@ -44,6 +44,9 @@ int cmd_orc(int argc, const char **argv) const char *objname; argc--; argv++; + if (argc <= 0) + usage_with_options(orc_usage, check_options); + if (!strncmp(argv[0], "gen", 3)) { argc = parse_options(argc, argv, check_options, orc_usage, 0); if (argc != 1) @@ -52,7 +55,6 @@ int cmd_orc(int argc, const char **argv) objname = argv[0]; return check(objname, no_fp, no_unreachable, true); - } if (!strcmp(argv[0], "dump")) {
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