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driver core: module.c: Use kasprintf 

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

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <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: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Julia Lawall 2010-03-10 22:18:13 +01:00 committed by Greg Kroah-Hartman
parent ffa156590f
commit 1653268b1b
1 changed files with 1 additions and 3 deletions
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4
drivers/base/module.c
View File

@ -15,12 +15,10 @@ static char *make_driver_name(struct device_driver *drv)
{
char *driver_name;
driver_name = kmalloc(strlen(drv->name) + strlen(drv->bus->name) + 2,
GFP_KERNEL);
driver_name = kasprintf(GFP_KERNEL, "%s:%s", drv->bus->name, drv->name);
if (!driver_name)
return NULL;
sprintf(driver_name, "%s:%s", drv->bus->name, drv->name);
return driver_name;
}