[PATCH] s390: net: claw.c: Cleaning up possible error if incorrect in parameter

[Rickard Strandqvist]

Possible error if incorrect in parameter, count = 0.
And clarified what the code actually does significantly.

Signed-off-by: Rickard Strandqvist <rickard_strandqv...@spectrumdigital.se>
---
 drivers/s390/net/claw.c |   24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index d837c3c..8d5b7b6 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -3070,10 +3070,10 @@ claw_hname_write(struct device *dev, struct 
device_attribute *attr,
        p_env = priv->p_env;
        if (count > MAX_NAME_LEN+1)
                return -EINVAL;
-       memset(p_env->host_name, 0x20, MAX_NAME_LEN);
-       strncpy(p_env->host_name,buf, count);
-       p_env->host_name[count-1] = 0x20;  /* clear extra 0x0a */
-       p_env->host_name[MAX_NAME_LEN] = 0x00;
+       strlcpy(p_env->host_name, buf,
+                       sizeof(p_env->host_name));
+       strlcat(p_env->host_name, "        ",
+                       sizeof(p_env->host_name));
        CLAW_DBF_TEXT(2, setup, "HstnSet");
        CLAW_DBF_TEXT_(2, setup, "%s", p_env->host_name);
 
@@ -3108,10 +3108,10 @@ claw_adname_write(struct device *dev, struct 
device_attribute *attr,
        p_env = priv->p_env;
        if (count > MAX_NAME_LEN+1)
                return -EINVAL;
-       memset(p_env->adapter_name, 0x20, MAX_NAME_LEN);
-       strncpy(p_env->adapter_name,buf, count);
-       p_env->adapter_name[count-1] = 0x20; /* clear extra 0x0a */
-       p_env->adapter_name[MAX_NAME_LEN] = 0x00;
+       strlcpy(p_env->adapter_name, buf,
+                       sizeof(p_env->adapter_name));
+       strlcat(p_env->adapter_name, "        ",
+                       sizeof(p_env->adapter_name));
        CLAW_DBF_TEXT(2, setup, "AdnSet");
        CLAW_DBF_TEXT_(2, setup, "%s", p_env->adapter_name);
 
@@ -3147,10 +3147,10 @@ claw_apname_write(struct device *dev, struct 
device_attribute *attr,
        p_env = priv->p_env;
        if (count > MAX_NAME_LEN+1)
                return -EINVAL;
-       memset(p_env->api_type, 0x20, MAX_NAME_LEN);
-       strncpy(p_env->api_type,buf, count);
-       p_env->api_type[count-1] = 0x20;  /* we get a loose 0x0a */
-       p_env->api_type[MAX_NAME_LEN] = 0x00;
+       strlcpy(p_env->api_type, buf,
+                       sizeof(p_env->api_type));
+       strlcat(p_env->api_type, "        ",
+                       sizeof(p_env->api_type));
        if(strncmp(p_env->api_type,WS_APPL_NAME_PACKED,6) == 0) {
                p_env->read_size=DEF_PACK_BUFSIZE;
                p_env->write_size=DEF_PACK_BUFSIZE;
-- 
1.7.10.4

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