[PATCH] create a kstrdup library function

This patch creates a new kstrdup library function and changes the "local"
implementations in several places to use this function.

Most of the changes come from the sound and net subsystems.  The sound part
had already been acknowledged by Takashi Iwai and the net part by David S.
Miller.

I left UML alone for now because I would need more time to read the code
carefully before making changes there.

Signed-off-by: Paulo Marques <pmarques@grupopie.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 9 deletions

diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 2b99b4028d31..d6baf6fdf8a9 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -8,6 +8,7 @@
 #include <linux/err.h>
 #include <linux/seq_file.h>
 #include <linux/hash.h>
+#include <linux/string.h>
 
 #define RPCDBG_FACILITY RPCDBG_AUTH
 
@@ -20,14 +21,6 @@
  */
 
 
-static char *strdup(char *s)
-{
-        char *rv = kmalloc(strlen(s)+1, GFP_KERNEL);
-        if (rv)
-                strcpy(rv, s);
-        return rv;
-}
-
 struct unix_domain {
         struct auth_domain      h;
         int     addr_changes;
@@ -55,7 +48,7 @@ struct auth_domain *unix_domain_find(char *name)
         if (new == NULL)
                 return NULL;
         cache_init(&new->h.h);
-        new->h.name = strdup(name);
+        new->h.name = kstrdup(name, GFP_KERNEL);
         new->h.flavour = RPC_AUTH_UNIX;
         new->addr_changes = 0;
         new->h.h.expiry_time = NEVER;