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Date: Fri, 5 May 2017 23:03:23 +0200
From: SF Markus Elfring <elfring@...rs.sourceforge.net>
To: Ingo Molnar <mingo@...hat.com>,
Steven Rostedt <rostedt@...dmis.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
kernel-janitors@...r.kernel.org
Subject: [PATCH 3/7] kernel-trace: Adjust two checks for null pointers in
compatible_field()
From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 5 May 2017 20:00:11 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written !…
Thus fix the affected source code place.
Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
kernel/trace/trace_events_hist.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index df566e21344d..36412deac24c 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -1324,7 +1324,7 @@ static bool compatible_field(struct ftrace_event_field *field,
{
if (field == test_field)
return true;
- if (field == NULL || test_field == NULL)
+ if (!field || !test_field)
return false;
if (strcmp(field->name, test_field->name) != 0)
return false;
--
2.12.2
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