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batman-adv: Use kasprintf

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kasprintf combines kmalloc and sprintf, and takes care of the size
calculation itself.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression a,flag;
expression list args;
statement S;
@@

  a =
-  \(kmalloc\|kzalloc\)(...,flag)
+  kasprintf(flag,args)
  <... when != a
  if (a == NULL || ...) S
  ...>
- sprintf(a,args);
// </smpl>

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Himangi Saraogi 2014-06-29 00:06:29 +05:30 committed by David S. Miller
parent 0a7fdbde69
commit b98fe24ca7
1 changed files with 8 additions and 16 deletions
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24
net/batman-adv/sysfs.c
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@ -900,32 +900,24 @@ int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type,
bat_kobj = &bat_priv->soft_iface->dev.kobj;
uevent_env[0] = kmalloc(strlen(BATADV_UEV_TYPE_VAR) +
strlen(batadv_uev_type_str[type]) + 1,
GFP_ATOMIC);
uevent_env[0] = kasprintf(GFP_ATOMIC,
"%s%s", BATADV_UEV_TYPE_VAR,
batadv_uev_type_str[type]);
if (!uevent_env[0])
goto out;
sprintf(uevent_env[0], "%s%s", BATADV_UEV_TYPE_VAR,
batadv_uev_type_str[type]);
uevent_env[1] = kmalloc(strlen(BATADV_UEV_ACTION_VAR) +
strlen(batadv_uev_action_str[action]) + 1,
GFP_ATOMIC);
uevent_env[1] = kasprintf(GFP_ATOMIC,
"%s%s", BATADV_UEV_ACTION_VAR,
batadv_uev_action_str[action]);
if (!uevent_env[1])
goto out;
sprintf(uevent_env[1], "%s%s", BATADV_UEV_ACTION_VAR,
batadv_uev_action_str[action]);
/* If the event is DEL, ignore the data field */
if (action != BATADV_UEV_DEL) {
uevent_env[2] = kmalloc(strlen(BATADV_UEV_DATA_VAR) +
strlen(data) + 1, GFP_ATOMIC);
uevent_env[2] = kasprintf(GFP_ATOMIC,
"%s%s", BATADV_UEV_DATA_VAR, data);
if (!uevent_env[2])
goto out;
sprintf(uevent_env[2], "%s%s", BATADV_UEV_DATA_VAR, data);
}
ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env);