From: Wayen.Yan <win847@gmail.com>
Date: Thu, 11 Jun 2026 03:52:57 +0000 (+0800)
Subject: tracing: Remove unused ret assignment in tracing_set_tracer()
X-Git-Tag: v7.2-rc3~9^2~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a20b08de862c2983eac183b7560ad678acb58608;p=thirdparty%2Fkernel%2Flinux.git

tracing: Remove unused ret assignment in tracing_set_tracer()

In tracing_set_tracer(), the assignment 'ret = 0' following the
__tracing_resize_ring_buffer() error check is a dead store. After
this point, all subsequent code paths either return with a constant
value (-EINVAL, 0, -EBUSY) or reassign ret before reading it
(tracing_arm_snapshot_locked, tracer_init).

Remove the unnecessary assignment.

No functional change.

Link: https://patch.msgid.link/6a2a37c4.f0a9eb5a.2fc603.7724@mx.google.com
Signed-off-by: Wayen.Yan <win847@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 1146b83b711a..299f5ab630b9 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5015,7 +5015,6 @@ int tracing_set_tracer(struct trace_array *tr, const char *buf)
 						RING_BUFFER_ALL_CPUS);
 		if (ret < 0)
 			return ret;
-		ret = 0;
 	}
 
 	list_for_each_entry(t, &tr->tracers, list) {