linux-kernel - [PATCH] kernel/trace: Initialize integer variable to prevent garbage return value

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Message-Id: <20220522061826.1751-1-gautammenghani201@gmail.com>
Date:   Sat, 21 May 2022 23:18:26 -0700
From:   Gautam Menghani <gautammenghani201@...il.com>
To:     rostedt@...dmis.org, mingo@...hat.com
Cc:     Gautam Menghani <gautammenghani201@...il.com>,
        linux-kernel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        skhan@...uxfoundation.org
Subject: [PATCH] kernel/trace: Initialize integer variable to prevent garbage return value

Initialize the integer variable to 0 to fix the clang scan warning:
Undefined or garbage value returned to caller 
[core.uninitialized.UndefReturn]
        return ret;

Signed-off-by: Gautam Menghani <gautammenghani201@...il.com>
---
 kernel/trace/trace_boot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c
index 0580287d7a0d..778200dd8ede 100644
--- a/kernel/trace/trace_boot.c
+++ b/kernel/trace/trace_boot.c
@@ -300,7 +300,7 @@ trace_boot_hist_add_handlers(struct xbc_node *hnode, char **bufp,
 {
 	struct xbc_node *node;
 	const char *p, *handler;
-	int ret;
+	int ret = 0;
 
 	handler = xbc_node_get_data(hnode);
 
-- 
2.25.1