instance.c: Fix a memory leak reported by scan-build.

[libsigrokdecode.git] / type_decoder.c

diff --git a/type_decoder.c b/type_decoder.c
index aa92c3b22490d9e68813661bbd80c7e7575e89e2..35187a598a2d6ca19c5f09441f02955340e2468b 100644 (file)
--- a/type_decoder.c
+++ b/type_decoder.c
@@ -186,16 +186,18 @@ static int convert_binary(struct srd_decoder_inst *di, PyObject *obj,
                goto err;
        }
 
-       pdb = g_malloc(sizeof(struct srd_proto_data_binary));
        if (PyBytes_AsStringAndSize(py_tmp, &buf, &size) == -1)
                goto err;
 
        PyGILState_Release(gstate);
 
+       pdb = g_malloc(sizeof(struct srd_proto_data_binary));
        pdb->bin_class = bin_class;
        pdb->size = size;
-       if (!(pdb->data = g_try_malloc(pdb->size)))
+       if (!(pdb->data = g_try_malloc(pdb->size))) {
+               g_free(pdb);
                return SRD_ERR_MALLOC;
+       }
        memcpy((void *)pdb->data, (const void *)buf, pdb->size);
        pdata->data = pdb;
 
@@ -369,17 +371,11 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args)
                break;
        }
 
-       if (py_data)
-               Py_DECREF(py_data);
-
        PyGILState_Release(gstate);
 
        Py_RETURN_NONE;
 
 err:
-       if (py_data)
-               Py_DECREF(py_data);
-
        PyGILState_Release(gstate);
 
        return NULL;
@@ -524,14 +520,13 @@ static PyObject *get_current_pinvalues(const struct srd_decoder_inst *di)
        PyObject *py_pinvalues;
        PyGILState_STATE gstate;
 
-       gstate = PyGILState_Ensure();
-
        if (!di) {
                srd_err("Invalid decoder instance.");
-               PyGILState_Release(gstate);
                return NULL;
        }
 
+       gstate = PyGILState_Ensure();
+
        py_pinvalues = PyTuple_New(di->dec_num_channels);
 
        for (i = 0; i < di->dec_num_channels; i++) {
@@ -592,7 +587,7 @@ static int create_term_list(PyObject *py_dict, GSList **term_list)
                                srd_err("Failed to get the value.");
                                goto err;
                        }
-                       term = g_malloc0(sizeof(struct srd_term));
+                       term = g_malloc(sizeof(struct srd_term));
                        term->type = get_term_type(term_str);
                        term->channel = PyLong_AsLong(py_key);
                        g_free(term_str);
@@ -603,7 +598,7 @@ static int create_term_list(PyObject *py_dict, GSList **term_list)
                                srd_err("Failed to get number of samples to skip.");
                                goto err;
                        }
-                       term = g_malloc0(sizeof(struct srd_term));
+                       term = g_malloc(sizeof(struct srd_term));
                        term->type = SRD_TERM_SKIP;
                        term->num_samples_to_skip = num_samples_to_skip;
                        term->num_samples_already_skipped = 0;
@@ -766,7 +761,7 @@ static int set_skip_condition(struct srd_decoder_inst *di, uint64_t count)
        GSList *term_list;
 
        condition_list_free(di);
-       term = g_malloc0(sizeof(*term));
+       term = g_malloc(sizeof(*term));
        term->type = SRD_TERM_SKIP;
        term->num_samples_to_skip = count;
        term->num_samples_already_skipped = 0;