Re: [PATCH] test_power: add missing newlines when printing parameters by sysfs

[Harley A.W. Lorenzo]

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 <hl1...@protonmail.com>
Suggested-by: Joe Perches <j...@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 
struct kernel_param *kp)

 static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
 {
-       strcpy(buffer, map_get_key(map_ac_online, ac_online, "unknown"));
-       strcat(buffer, "\n");
+       char const *out = map_get_key(map_ac_online, ac_online, "unknown");
+       sprintf(buffer, "%s\n", out);
        return 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 *kp)
 {
-       strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
-       strcat(buffer, "\n");
+       char const *out = map_get_key(map_ac_online, usb_online, "unknown");
+       sprintf(buffer, "%s\n", out);
        return 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_param 
*kp)
 {
-       strcpy(buffer, map_get_key(map_status, battery_status, "unknown"));
-       strcat(buffer, "\n");
+       char const *out = map_get_key(map_ac_online, battery_status, "unknown");
+       sprintf(buffer, "%s\n", out);
        return 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_param 
*kp)
 {
-       strcpy(buffer, map_get_key(map_health, battery_health, "unknown"));
-       strcat(buffer, "\n");
+       char const *out = map_get_key(map_ac_online, battery_health, "unknown");
+       sprintf(buffer, "%s\n", out);
        return strlen(buffer);
 }

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

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

--
2.28.0