src/tables/*: initialize to NULL.

Initialize freed sections with dvbpsi_DeletePSISections() to NULL.

src/tables/cat.c

@@ -308,6 +308,7 @@ void dvbpsi_GatherCATSections(dvbpsi_t *p_dvbpsi,
                                  p_cat_decoder->ap_sections[0]);
         /* Delete the sections */
         dvbpsi_DeletePSISections(p_cat_decoder->ap_sections[0]);
+        p_cat_decoder->ap_sections[0] = NULL;
         /* signal the new CAT */
         p_cat_decoder->pf_cat_callback(p_cat_decoder->p_cb_data,
                                        p_cat_decoder->p_building_cat);

src/tables/eit.c

@@ -460,6 +460,7 @@ void dvbpsi_GatherEITSections(dvbpsi_t *p_dvbpsi, void *p_private_decoder,
 
         /* Delete the sections */
         dvbpsi_DeletePSISections(p_eit_decoder->ap_sections[0]);
+        p_eit_decoder->ap_sections[0] = NULL;
 
         /* signal the new EIT */
         p_eit_decoder->pf_eit_callback(p_eit_decoder->p_cb_data, p_eit_decoder->p_building_eit);

src/tables/nit.c

@@ -436,6 +436,7 @@ void dvbpsi_GatherNITSections(dvbpsi_t *p_dvbpsi,
                                  p_nit_decoder->ap_sections[0]);
         /* Delete the sections */
         dvbpsi_DeletePSISections(p_nit_decoder->ap_sections[0]);
+        p_nit_decoder->ap_sections[0] = NULL;
         /* signal the new NIT */
         p_nit_decoder->pf_nit_callback(p_nit_decoder->p_cb_data,
                                        p_nit_decoder->p_building_nit);

src/tables/pat.c

@@ -339,6 +339,7 @@ void dvbpsi_GatherPATSections(dvbpsi_t* p_dvbpsi, dvbpsi_psi_section_t* p_sectio
                                  p_pat_decoder->ap_sections[0]);
         /* Delete the sections */
         dvbpsi_DeletePSISections(p_pat_decoder->ap_sections[0]);
+        p_pat_decoder->ap_sections[0] = NULL;
         /* signal the new PAT */
         p_pat_decoder->pf_pat_callback(p_pat_decoder->p_cb_data,
                                        p_pat_decoder->p_building_pat);

src/tables/pmt.c

@@ -402,6 +402,7 @@ void dvbpsi_GatherPMTSections(dvbpsi_t *p_dvbpsi, dvbpsi_psi_section_t* p_sectio
                                  p_pmt_decoder->ap_sections[0]);
         /* Delete the sections */
         dvbpsi_DeletePSISections(p_pmt_decoder->ap_sections[0]);
+        p_pmt_decoder->ap_sections[0] = NULL;
         /* signal the new PMT */
         p_pmt_decoder->pf_pmt_callback(p_pmt_decoder->p_cb_data,
                                        p_pmt_decoder->p_building_pmt);

src/tables/sdt.c

@@ -137,7 +137,10 @@ void dvbpsi_DetachSDT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extensi
     for (unsigned int i = 0; i <= 255; i++)
     {
         if (p_sdt_decoder->ap_sections[i])
+        {
             dvbpsi_DeletePSISections(p_sdt_decoder->ap_sections[i]);
+            p_sdt_decoder->ap_sections[i] = NULL;
+        }
     }
     free(p_subdec->p_cb_data);
 
@@ -409,6 +412,7 @@ void dvbpsi_GatherSDTSections(dvbpsi_t *p_dvbpsi,
                                  p_sdt_decoder->ap_sections[0]);
         /* Delete the sections */
         dvbpsi_DeletePSISections(p_sdt_decoder->ap_sections[0]);
+        p_sdt_decoder->ap_sections[0] = NULL;
         /* signal the new SDT */
         p_sdt_decoder->pf_sdt_callback(p_sdt_decoder->p_cb_data,
                                        p_sdt_decoder->p_building_sdt);