Simplify deallocations.

free (NULL) is a nop, therefore it is not necessary to check that
first.  Simplify the code accordingly.  This commit is the result of
the following semantic patch:

    @@
    identifier X;
    @@
    -if (X) free (X);
    +free (X);

* console-client/console.c: Simplify accordingly.
* console-client/driver.c: Likewise.
* console-client/vga.c: Likewise.
* ftpfs/dir.c: Likewise.
* libftpconn/unix.c: Likewise.
* libps/fmt.c: Likewise.
* libps/proclist.c: Likewise.
* libstore/mvol.c: Likewise.
* nfs/ops.c: Likewise.
* proc/host.c: Likewise.
* sutils/fstab.c: Likewise.

2 files changed, 5 insertions, 10 deletions

diff --git a/libps/fmt.c b/libps/fmt.c
index cd838852..46416632 100644
--- a/libps/fmt.c
+++ b/libps/fmt.c
@@ -362,12 +362,9 @@ ps_fmt_clone (struct ps_fmt *fmt, struct ps_fmt **copy)
 
   if (!new || !fields || !src)
     {
-      if (new)
-	free (new);
-      if (fields)
-	free (fields);
-      if (src)
-	free (src);
+      free (new);
+      free (fields);
+      free (src);
       return ENOMEM;
     }
 
diff --git a/libps/proclist.c b/libps/proclist.c
index 50aed73a..2201cadc 100644
--- a/libps/proclist.c
+++ b/libps/proclist.c
@@ -63,10 +63,8 @@ proc_stat_list_clone (struct proc_stat_list *pp, struct proc_stat_list **copy)
 
   if (!new || !procs)
     {
-      if (new)
-	free (new);
-      if (procs)
-	free (procs);
+      free (new);
+      free (procs);
       return ENOMEM;
     }