Don't set the error string twice

We were setting it to "Invalid CPU" to then reset it to whatever was in errno.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

python-schedutils/schedutils.c

diff --git a/python-schedutils/schedutils.c b/python-schedutils/schedutils.c
index 206f5ab..dfc7cb5 100644
--- a/python-schedutils/schedutils.c
+++ b/python-schedutils/schedutils.c
@@ -176,7 +176,8 @@
 
 		if (cpu >= max_cpus) {
 			PyErr_SetString(PyExc_OSError, "Invalid CPU");
-			goto out_free;
+			CPU_FREE(cpus);
+			return NULL;
 		}
 		CPU_SET_S(cpu, cpusetsize, cpus);
 	}
@@ -189,8 +190,6 @@
 out:
 	Py_INCREF(Py_None);
 	return Py_None;
-out_free:
-	CPU_FREE(cpus);
 out_error:
 	PyErr_SetFromErrno(PyExc_OSError);
 	goto out;