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From: Roman Gushchin <guro@fb.com>
To: Shuah Khan <shuah@kernel.org>
Cc: <linux-kernel@vger.kernel.org>, Roman Gushchin <guro@fb.com>,
	<linux-kselftest@vger.kernel.org>
Subject: [PATCH] kselftest/cgroup: fix variable dereferenced before check warning
Date: Tue, 22 May 2018 11:10:31 +0100	[thread overview]
Message-ID: <20180522101031.8451-1-guro@fb.com> (raw)

cg_name(const char *root, const char *name) is always called with
non-empty root and name arguments, so there is no sense in checking
it in the function body (after using in strlen()).

Signed-off-by: Roman Gushchin <guro@fb.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: linux-kselftest@vger.kernel.org
---
 tools/testing/selftests/cgroup/cgroup_util.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index 41cc3b5e5be1..b69bdeb4b9fe 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -59,8 +59,7 @@ char *cg_name(const char *root, const char *name)
 	size_t len = strlen(root) + strlen(name) + 2;
 	char *ret = malloc(len);
 
-	if (name)
-		snprintf(ret, len, "%s/%s", root, name);
+	snprintf(ret, len, "%s/%s", root, name);
 
 	return ret;
 }
@@ -70,8 +69,7 @@ char *cg_name_indexed(const char *root, const char *name, int index)
 	size_t len = strlen(root) + strlen(name) + 10;
 	char *ret = malloc(len);
 
-	if (name)
-		snprintf(ret, len, "%s/%s_%d", root, name, index);
+	snprintf(ret, len, "%s/%s_%d", root, name, index);
 
 	return ret;
 }
-- 
2.14.3

             reply	other threads:[~2018-05-22 10:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-22 10:10 Roman Gushchin [this message]
2018-05-22 15:35 ` [PATCH] kselftest/cgroup: fix variable dereferenced before check warning Shuah Khan

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