Patch "tracing: Fix return value check in trace_benchmark_reg()" has been added to the 4.10-stable tree

This is a note to let you know that I've just added the patch titled

tracing: Fix return value check in trace_benchmark_reg()

to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
tracing-fix-return-value-check-in-trace_benchmark_reg.patch
and it can be found in the queue-4.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Wei Yongjun <[email protected]>
Date: Thu, 12 Jan 2017 13:55:02 +0000
Subject: tracing: Fix return value check in trace_benchmark_reg()

From: Wei Yongjun <[email protected]>

commit 8f0994bb8cbde5452e58ce0cacdbf6cb58079d01 upstream.

In case of error, the function kthread_run() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR().

---
 kernel/trace/trace_benchmark.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

@@ -175,9 +175,9 @@ int trace_benchmark_reg(void)
 
 	bm_event_thread = kthread_run(benchmark_event_kthread,
 				      NULL, "event_benchmark");
-	if (!bm_event_thread) {
+	if (IS_ERR(bm_event_thread)) {
 		pr_warning("trace benchmark failed to create kernel thread\n");
-		return -ENOMEM;
+		return PTR_ERR(bm_event_thread);
 	}
 
 	return 0;

Patches currently in stable-queue which might be from [email protected] are

queue-4.10/tracing-fix-return-value-check-in-trace_benchmark_reg.patch