diff --git a/command.c b/command.c
index a4e1f2c10f..ea2e9e15a4 100644
--- a/command.c
+++ b/command.c
@@ -1024,7 +1024,7 @@ static void command_event_init_controllers(void)
             /* Ideally these checks shouldn't be required but if we always
              * call core_set_controller_port_device input won't work on 
              * cores that don't set port information properly */
-            if (info->ports.size != 0 && i < info->ports.size)
+            if (info && info->ports.size != 0 && i < info->ports.size)
                set_controller = true;
             break;
          default:
diff --git a/libretro-common/audio/dsp_filter.c b/libretro-common/audio/dsp_filter.c
index 7ff162f325..0b695ec87e 100644
--- a/libretro-common/audio/dsp_filter.c
+++ b/libretro-common/audio/dsp_filter.c
@@ -179,8 +179,9 @@ static bool append_plugs(retro_dsp_filter_t *dsp, struct string_list *list)
 {
    unsigned i;
    dspfilter_simd_mask_t mask = cpu_features_get();
+   unsigned list_size         = list ? list->size : 0;
 
-   for (i = 0; i < list->size; i++)
+   for (i = 0; i < list_size; i++)
    {
       dspfilter_get_implementation_t cb;
       const struct dspfilter_implementation *impl = NULL;
diff --git a/libretro-common/audio/resampler/audio_resampler.c b/libretro-common/audio/resampler/audio_resampler.c
index 06dad76242..a7cc0c2f47 100644
--- a/libretro-common/audio/resampler/audio_resampler.c
+++ b/libretro-common/audio/resampler/audio_resampler.c
@@ -131,7 +131,8 @@ static bool resampler_append_plugs(void **re,
 {
    resampler_simd_mask_t mask = (resampler_simd_mask_t)cpu_features_get();
 
-   *re = (*backend)->init(&resampler_config, bw_ratio, mask);
+   if (*backend)
+      *re = (*backend)->init(&resampler_config, bw_ratio, mask);
 
    if (!*re)
       return false;