From 532f49a6f19a153e202b5a174f8556fd50c36dd4 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 17 Jan 2020 08:30:07 +0300
Subject: [PATCH] tracing/boot: Fix an IS_ERR() vs NULL bug
The trace_array_get_by_name() function doesn't return error pointers,
it returns NULL on error.
Link: http://lkml.kernel.org/r/20200117053007.5h2juv272pokqhtq@kili.mountain
Fixes: 4f712a4d04a4 ("tracing/boot: Add instance node support")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
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 fa9603dc6469..cd541ac1cbc1 100644
--- a/kernel/trace/trace_boot.c
+++ b/kernel/trace/trace_boot.c
@@ -322,7 +322,7 @@ trace_boot_init_instances(struct xbc_node *node)
continue;
tr = trace_array_get_by_name(p);
- if (IS_ERR(tr)) {
+ if (!tr) {
pr_err("Failed to get trace instance %s\n", p);
continue;
}
--
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