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Date:   Mon, 05 Oct 2020 01:30:25 +0000
To:     Sebastian Reichel <sre@kernel.org>
From:   "Harley A.W. Lorenzo" <hl1998@protonmail.com>
Cc:     "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "wangxiongfeng2@huawei.com" <wangxiongfeng2@huawei.com>,
        "joe@perches.com" <joe@perches.com>
Reply-To: "Harley A.W. Lorenzo" <hl1998@protonmail.com>
Subject: Re: [PATCH] test_power: add missing newlines when printing parameters by sysfs
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In-Reply-To: <20201004221645.nyaf7jhur4jixo6n@earth.universe>
References: <1599199798-27804-1-git-send-email-wangxiongfeng2@huawei.com> <20201003212336.5et7erdf6fihqscu@earth.universe> <472008b94f4b20915425db4714fdb505cb0cbe5a.camel@perches.com> <20201003215029.jsugcgpgrmcmydr3@earth.universe> <9822843f764520e1076a92fd9120294aa393a085.camel@perches.com> <20201004221645.nyaf7jhur4jixo6n@earth.universe>
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Here is the updated patch using sprintf, diffing from the original patch by=
 Xiongfeng Wang.

[PATCH] test_power: revise parameter printing to use sprintf

Signed-off-by: Harley A.W. Lorenzo <hl1998@protonmail.com>
Suggested-by: Joe Perches <joe@perches.com>
---
 drivers/power/supply/test_power.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/power/supply/test_power.c b/drivers/power/supply/test_=
power.c
index 4895ee5e63a9..fbb179a1b615 100644
--- a/drivers/power/supply/test_power.c
+++ b/drivers/power/supply/test_power.c
@@ -352,8 +352,8 @@ static int param_set_ac_online(const char *key, const s=
truct kernel_param *kp)

 static int param_get_ac_online(char *buffer, const struct kernel_param *kp=
)
 {
-=09strcpy(buffer, map_get_key(map_ac_online, ac_online, "unknown"));
-=09strcat(buffer, "\n");
+=09char const *out =3D map_get_key(map_ac_online, ac_online, "unknown");
+=09sprintf(buffer, "%s\n", out);
 =09return strlen(buffer);
 }

@@ -366,8 +366,8 @@ static int param_set_usb_online(const char *key, const =
struct kernel_param *kp)

 static int param_get_usb_online(char *buffer, const struct kernel_param *k=
p)
 {
-=09strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
-=09strcat(buffer, "\n");
+=09char const *out =3D map_get_key(map_ac_online, usb_online, "unknown");
+=09sprintf(buffer, "%s\n", out);
 =09return strlen(buffer);
 }

@@ -381,8 +381,8 @@ static int param_set_battery_status(const char *key,

 static int param_get_battery_status(char *buffer, const struct kernel_para=
m *kp)
 {
-=09strcpy(buffer, map_get_key(map_status, battery_status, "unknown"));
-=09strcat(buffer, "\n");
+=09char const *out =3D map_get_key(map_ac_online, battery_status, "unknown=
");
+=09sprintf(buffer, "%s\n", out);
 =09return strlen(buffer);
 }

@@ -396,8 +396,8 @@ static int param_set_battery_health(const char *key,

 static int param_get_battery_health(char *buffer, const struct kernel_para=
m *kp)
 {
-=09strcpy(buffer, map_get_key(map_health, battery_health, "unknown"));
-=09strcat(buffer, "\n");
+=09char const *out =3D map_get_key(map_ac_online, battery_health, "unknown=
");
+=09sprintf(buffer, "%s\n", out);
 =09return strlen(buffer);
 }

@@ -412,8 +412,9 @@ static int param_set_battery_present(const char *key,
 static int param_get_battery_present(char *buffer,
 =09=09=09=09=09const struct kernel_param *kp)
 {
-=09strcpy(buffer, map_get_key(map_present, battery_present, "unknown"));
-=09strcat(buffer, "\n");
+=09char const *out =3D map_get_key(map_ac_online, battery_present,
+=09=09=09=09=09"unknown");
+=09sprintf(buffer, "%s\n", out);
 =09return strlen(buffer);
 }

@@ -429,9 +430,9 @@ static int param_set_battery_technology(const char *key=
,
 static int param_get_battery_technology(char *buffer,
 =09=09=09=09=09const struct kernel_param *kp)
 {
-=09strcpy(buffer,
-=09=09map_get_key(map_technology, battery_technology, "unknown"));
-=09strcat(buffer, "\n");
+=09char const *out =3D map_get_key(map_ac_online, battery_technology,
+=09=09=09=09=09"unknown");
+=09sprintf(buffer, "%s\n", out);
 =09return strlen(buffer);
 }

--
2.28.0