Replace memory leaking instances of realloc with non-leaking reallocf.

In some cases replace if (a == null) a = malloc(x); else a =
realloc(a, x); with simple reallocf(a, x).  Per ANSI-C, this is
guaranteed to be the same thing.

I've been running these on my system here w/o ill effects for some
time.  However, the CTM-express is at part 6 of 34 for the CAM
changes, so I've not been able to do a build world with the CAM in the
tree with these changes.  Shouldn't impact anything, but...

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/libkvm/kvm_proc.c b/lib/libkvm/kvm_proc.c
index 75bace45..4bcc2e5 100644
--- a/lib/libkvm/kvm_proc.c
+++ b/lib/libkvm/kvm_proc.c
@@ -370,8 +370,10 @@ _kvm_realloc(kd, p, n)
 {
 	void *np = (void *)realloc(p, n);
 
-	if (np == 0)
+	if (np == 0) {
+		free(p);
 		_kvm_err(kd, kd->program, "out of memory");
+	}
 	return (np);
 }