All of lore.kernel.org
 help / color / mirror / Atom feed
From: Shuah Khan <skhan@linuxfoundation.org>
To: trenn@suse.com, shuah@kernel.org
Cc: Shuah Khan <skhan@linuxfoundation.org>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] cpupower: Fix NULL but dereferenced coccicheck errors
Date: Mon, 29 Jun 2020 14:02:23 -0600	[thread overview]
Message-ID: <20200629200223.27322-2-skhan@linuxfoundation.org> (raw)
In-Reply-To: <20200629200223.27322-1-skhan@linuxfoundation.org>

Fix NULL but dereferenced coccicheck errors found by:

make coccicheck MODE=report M=tools/power/cpupower

tools/power/cpupower/lib/cpufreq.c:384:19-23: ERROR: first is NULL but dereferenced.
tools/power/cpupower/lib/cpufreq.c:440:19-23: ERROR: first is NULL but dereferenced.
tools/power/cpupower/lib/cpufreq.c:308:19-23: ERROR: first is NULL but dereferenced.
tools/power/cpupower/lib/cpufreq.c:753:19-23: ERROR: first is NULL but dereferenced.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
---
 tools/power/cpupower/lib/cpufreq.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/power/cpupower/lib/cpufreq.c b/tools/power/cpupower/lib/cpufreq.c
index 6e04304560ca..c3b56db8b921 100644
--- a/tools/power/cpupower/lib/cpufreq.c
+++ b/tools/power/cpupower/lib/cpufreq.c
@@ -285,7 +285,7 @@ struct cpufreq_available_governors *cpufreq_get_available_governors(unsigned
 			} else {
 				first = malloc(sizeof(*first));
 				if (!first)
-					goto error_out;
+					return NULL;
 				current = first;
 			}
 			current->first = first;
@@ -362,7 +362,7 @@ struct cpufreq_available_frequencies
 			} else {
 				first = malloc(sizeof(*first));
 				if (!first)
-					goto error_out;
+					return NULL;
 				current = first;
 			}
 			current->first = first;
@@ -418,7 +418,7 @@ struct cpufreq_available_frequencies
 			} else {
 				first = malloc(sizeof(*first));
 				if (!first)
-					goto error_out;
+					return NULL;
 				current = first;
 			}
 			current->first = first;
@@ -493,7 +493,7 @@ static struct cpufreq_affected_cpus *sysfs_get_cpu_list(unsigned int cpu,
 			} else {
 				first = malloc(sizeof(*first));
 				if (!first)
-					goto error_out;
+					return NULL;
 				current = first;
 			}
 			current->first = first;
@@ -726,7 +726,7 @@ struct cpufreq_stats *cpufreq_get_stats(unsigned int cpu,
 			} else {
 				first = malloc(sizeof(*first));
 				if (!first)
-					goto error_out;
+					return NULL;
 				current = first;
 			}
 			current->first = first;
-- 
2.25.1


      reply	other threads:[~2020-06-29 20:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-29 20:02 [PATCH] cpupower: Fix comparing pointer to 0 coccicheck warns Shuah Khan
2020-06-29 20:02 ` Shuah Khan [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200629200223.27322-2-skhan@linuxfoundation.org \
    --to=skhan@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=shuah@kernel.org \
    --cc=trenn@suse.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.