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.

1 files changed, 1 insertions, 2 deletions

diff --git a/nfs/ops.c b/nfs/ops.c
index afde0bed..e0daae3f 100644
--- a/nfs/ops.c
+++ b/nfs/ops.c
@@ -251,8 +251,7 @@ netfs_attempt_chmod (struct iouser *cred, struct node *np,
 	      np->nn->dtrans = SOCK;
 	      np->nn->stat_updated = 0;
 	    }
-	  if (f)
-	    free (f);
+	  free (f);
 	  return 0;
 	}
     }