linux-kernel - [PATCH] module: potential uninitialized return in module_kallsyms_on_each

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Message-ID: <YCO8AwE57IzaMamG@mwanda>
Date:   Wed, 10 Feb 2021 13:57:07 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Jessica Yu <jeyu@...nel.org>, Christoph Hellwig <hch@....de>
Cc:     Petr Mladek <pmladek@...e.com>, Miroslav Benes <mbenes@...e.cz>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] module: potential uninitialized return in
 module_kallsyms_on_each_symbol()

Smatch complains that:

	kernel/module.c:4472 module_kallsyms_on_each_symbol()
        error: uninitialized symbol 'ret'.

This warning looks like it could be correct if the &modules list is
empty.

Fixes: 013c1667cf78 ("kallsyms: refactor {,module_}kallsyms_on_each_symbol")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 kernel/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/module.c b/kernel/module.c
index 95186c9d81ea..9bd3c821d029 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -4447,7 +4447,7 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
 {
 	struct module *mod;
 	unsigned int i;
-	int ret;
+	int ret = 0;
 
 	mutex_lock(&module_mutex);
 	list_for_each_entry(mod, &modules, list) {
-- 
2.30.0