linux-kernel - [tip: objtool/core] objtool: Fix error handling inconsistencies in check()

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Message-ID: <174220839194.14745.12721604369366153670.tip-bot2@tip-bot2>
Date: Mon, 17 Mar 2025 10:46:31 -0000
From: "tip-bot2 for Josh Poimboeuf" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Josh Poimboeuf <jpoimboe@...nel.org>,
 "Peter Zijlstra (Intel)" <peterz@...radead.org>,
 Brendan Jackman <jackmanb@...gle.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject:
 [tip: objtool/core] objtool: Fix error handling inconsistencies in check()

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     b745962cb97569aad026806bb0740663cf813147
Gitweb:        https://git.kernel.org/tip/b745962cb97569aad026806bb0740663cf813147
Author:        Josh Poimboeuf <jpoimboe@...nel.org>
AuthorDate:    Fri, 14 Mar 2025 12:29:00 -07:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Mon, 17 Mar 2025 11:35:59 +01:00

objtool: Fix error handling inconsistencies in check()

Make sure all fatal errors are funneled through the 'out' label with a
negative ret.

Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Brendan Jackman <jackmanb@...gle.com>
Link: https://lore.kernel.org/r/0f49d6a27a080b4012e84e6df1e23097f44cc082.1741975349.git.jpoimboe@kernel.org
---
 tools/objtool/check.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 12bf6c1..e68a89e 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -4605,8 +4605,10 @@ int check(struct objtool_file *file)
 	init_cfi_state(&force_undefined_cfi);
 	force_undefined_cfi.force_undefined = true;
 
-	if (!cfi_hash_alloc(1UL << (file->elf->symbol_bits - 3)))
+	if (!cfi_hash_alloc(1UL << (file->elf->symbol_bits - 3))) {
+		ret = -1;
 		goto out;
+	}
 
 	cfi_hash_add(&init_cfi);
 	cfi_hash_add(&func_cfi);
@@ -4623,7 +4625,7 @@ int check(struct objtool_file *file)
 	if (opts.retpoline) {
 		ret = validate_retpoline(file);
 		if (ret < 0)
-			return ret;
+			goto out;
 		warnings += ret;
 	}
 
@@ -4659,7 +4661,7 @@ int check(struct objtool_file *file)
 		 */
 		ret = validate_unrets(file);
 		if (ret < 0)
-			return ret;
+			goto out;
 		warnings += ret;
 	}
 
@@ -4722,7 +4724,7 @@ int check(struct objtool_file *file)
 	if (opts.prefix) {
 		ret = add_prefix_symbols(file);
 		if (ret < 0)
-			return ret;
+			goto out;
 		warnings += ret;
 	}