Try to fix Coverity warnings

cheevos/cheevos.c

@@ -1964,7 +1964,7 @@ static void cheevos_test_cheevo_set(const cheevoset_t *set)
             task_push_http_transfer(url, true, NULL,
                   cheevos_unlocked, cheevo);
 
-            if(settings->bools.cheevos_auto_screenshot)
+            if (settings && settings->bools.cheevos_auto_screenshot)
             {
                char shotname[256];
 
@@ -1974,7 +1974,8 @@ static void cheevos_test_cheevo_set(const cheevoset_t *set)
                   cheevo->id);
                shotname[sizeof(shotname) - 1] = '\0';
 
-               if(take_screenshot(shotname, true, video_driver_cached_frame_has_valid_framebuffer()))
+               if (take_screenshot(shotname, true,
+                        video_driver_cached_frame_has_valid_framebuffer()))
                   RARCH_LOG("[CHEEVOS]: got a screenshot for cheevo %u\n", cheevo->id);
                else
                   RARCH_LOG("[CHEEVOS]: failed to get screenshot for cheevo %u\n", cheevo->id);

frontend/drivers/platform_unix.c

@@ -729,7 +729,7 @@ static void check_proc_acpi_battery(const char * node, bool * have_battery,
       {
          char *endptr = NULL;
 
-         if (*endptr == ' ')
+         if (endptr && *endptr == ' ')
             remaining = (int)strtol(val, &endptr, 10);
       }
    }
@@ -741,7 +741,7 @@ static void check_proc_acpi_battery(const char * node, bool * have_battery,
       char      *endptr = NULL;
 
       if (string_is_equal(key, "design capacity"))
-         if (*endptr == ' ')
+         if (endptr && *endptr == ' ')
             maximum = (int)strtol(val, &endptr, 10);
    }
 

menu/cbs/menu_cbs_ok.c

@@ -1155,17 +1155,23 @@ static int generic_action_ok(const char *path,
             struct video_shader *shader           = menu_shader_get();
             struct video_shader_pass *shader_pass = shader ? &shader->pass[(unsigned)hack_shader_pass] : NULL;
             flush_char                            = msg_hash_to_str((enum msg_hash_enums)flush_id);
+
+            if (shader_pass)
+            {
                strlcpy(
                      shader_pass->source.path,
                      action_path,
                      sizeof(shader_pass->source.path));
-            video_shader_resolve_parameters(NULL, menu_shader_get());
+               video_shader_resolve_parameters(NULL, shader);
+            }
          }
          break;
       case ACTION_OK_LOAD_RECORD_CONFIGFILE:
          {
             global_t *global = global_get_ptr();
             flush_char       = msg_hash_to_str(flush_id);
+
+            if (global)
                strlcpy(global->record.config, action_path,
                      sizeof(global->record.config));
          }

menu/drivers/materialui.c

@@ -837,14 +837,6 @@ static void materialui_render_label_value(
       const char *value, float *label_color,
       uint32_t sublabel_color)
 {
-   /* This will be used instead of label_color if texture_switch is 'off' icon */
-   float pure_white[16]=  {
-      1.00, 1.00, 1.00, 1.00,
-      1.00, 1.00, 1.00, 1.00,
-      1.00, 1.00, 1.00, 1.00,
-      1.00, 1.00, 1.00, 1.00,
-   };
-
    menu_entry_t entry;
    menu_animation_ctx_ticker_t ticker;
    char label_str[255];
@@ -999,6 +991,16 @@ static void materialui_render_label_value(
       );
 
    if (texture_switch)
+   {
+      /* This will be used instead of label_color if 
+       * texture_switch is 'off' icon */
+      float pure_white[16]=  {
+         1.00, 1.00, 1.00, 1.00,
+         1.00, 1.00, 1.00, 1.00,
+         1.00, 1.00, 1.00, 1.00,
+         1.00, 1.00, 1.00, 1.00,
+      };
+
       materialui_draw_icon(video_info,
             mui->icon_size,
             (uintptr_t)texture_switch,
@@ -1010,6 +1012,7 @@ static void materialui_render_label_value(
             1,
             switch_is_on ? &label_color[0] :  &pure_white[0]
             );
+   }
 
    menu_entry_free(&entry);
 }
@@ -1176,36 +1179,35 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
    char title[255];
    char title_buf[255];
    char title_msg[255];
+
    float black_bg[16]   = {
       0, 0, 0, 0.75,
       0, 0, 0, 0.75,
       0, 0, 0, 0.75,
       0, 0, 0, 0.75,
    };
-   float pure_white[16] = {
+
-      1.00, 1.00, 1.00, 1.00,
-      1.00, 1.00, 1.00, 1.00,
-      1.00, 1.00, 1.00, 1.00,
-      1.00, 1.00, 1.00, 1.00,
-   };
    float white_bg[16] = {
       0.98, 0.98, 0.98, 1.00,
       0.98, 0.98, 0.98, 1.00,
       0.98, 0.98, 0.98, 1.00,
       0.98, 0.98, 0.98, 1.00,
    };
+
    float white_transp_bg[16] = {
       0.98, 0.98, 0.98, 0.90,
       0.98, 0.98, 0.98, 0.90,
       0.98, 0.98, 0.98, 0.90,
       0.98, 0.98, 0.98, 0.90,
    };
+
    float grey_bg[16] = {
       0.78, 0.78, 0.78, 0.90,
       0.78, 0.78, 0.78, 0.90,
       0.78, 0.78, 0.78, 0.90,
       0.78, 0.78, 0.78, 0.90,
    };
+
    /* TODO/FIXME  convert this over to new hex format */
    float greyish_blue[16] = {
       0.22, 0.28, 0.31, 1.00,
@@ -1227,10 +1229,6 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
       0.00, 0.00, 0.00, 0.20,
    };
 
-   uint32_t black_opaque_54        = 0x0000008a;
-   uint32_t black_opaque_87        = 0x000000de;
-   uint32_t white_opaque_70        = 0xffffffb3;
-
    /* https://material.google.com/style/color.html#color-color-palette */
    /* Hex values converted to RGB normalized decimals, alpha set to 1 */
    float blue_500[16]              = {0};
@@ -1249,19 +1247,6 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
    float footer_bg_color_real[16]  = {0};
    float header_bg_color_real[16]  = {0};
 
-   file_list_t *list               = NULL;
-   materialui_node_t *node         = NULL;
-   unsigned width                  = video_info->width;
-   unsigned height                 = video_info->height;
-   unsigned ticker_limit           = 0;
-   unsigned i                      = 0;
-   unsigned header_height          = 0;
-   size_t selection                = 0;
-   size_t title_margin             = 0;
-   materialui_handle_t *mui        = (materialui_handle_t*)data;
-   bool background_rendered        = false;
-   bool libretro_running           = video_info->libretro_running;
-
    /* Default is blue theme */
    float *header_bg_color          = NULL;
    float *highlighted_entry_color  = NULL;
@@ -1270,15 +1255,37 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
    float *active_tab_marker_color  = NULL;
    float *passive_tab_icon_color   = grey_bg;
 
+   file_list_t *list               = NULL;
+   materialui_node_t *node         = NULL;
+
+   unsigned width                  = video_info->width;
+   unsigned height                 = video_info->height;
+   unsigned ticker_limit           = 0;
+   unsigned i                      = 0;
+   unsigned header_height          = 0;
    uint32_t sublabel_color         = 0x888888ff;
    uint32_t font_normal_color      = 0;
    uint32_t font_hover_color       = 0;
    uint32_t font_header_color      = 0;
-   size_t usable_width             = width - (mui->margin * 2);
+
+   uint32_t black_opaque_54        = 0x0000008a;
+   uint32_t black_opaque_87        = 0x000000de;
+   uint32_t white_opaque_70        = 0xffffffb3;
+
+   size_t usable_width             = 0;
+   size_t selection                = 0;
+   size_t title_margin             = 0;
+
+   bool background_rendered        = false;
+   bool libretro_running           = video_info->libretro_running;
+
+   materialui_handle_t *mui        = (materialui_handle_t*)data;
 
    if (!mui)
       return;
 
+   usable_width                    = width - (mui->margin * 2);
+
    mui->frame_count++;
 
    msg[0] = title[0] = title_buf[0] = title_msg[0] = '\0';
@@ -1449,7 +1456,7 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
       draw.matrix_data        = NULL;
       draw.texture            = menu_display_white_texture;
       draw.prim_type          = MENU_DISPLAY_PRIM_TRIANGLESTRIP;
-      draw.color              = &body_bg_color[0];
+      draw.color              = body_bg_color ? &body_bg_color[0] : NULL;
       draw.vertex             = NULL;
       draw.tex_coord          = NULL;
       draw.vertex_count       = 4;
@@ -1520,7 +1527,7 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
             node->line_height,
             width,
             height,
-            &highlighted_entry_color[0]
+            highlighted_entry_color ? &highlighted_entry_color[0] : NULL
             );
 
    font_driver_bind_block(mui->font, &mui->raster_block);
@@ -1534,7 +1541,7 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
             height,
             font_normal_color,
             font_hover_color,
-            &active_tab_marker_color[0],
+            active_tab_marker_color ? &active_tab_marker_color[0] : NULL,
             sublabel_color
             );
 
@@ -1542,7 +1549,9 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
          video_info);
    font_driver_bind_block(mui->font, NULL);
 
-   font_driver_flush(video_info->width, video_info->height, mui->font2,
+   font_driver_flush(video_info->width,
+         video_info->height,
+         mui->font2,
          video_info);
    font_driver_bind_block(mui->font2, NULL);
 
@@ -1557,7 +1566,7 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
          header_height,
          width,
          height,
-         &header_bg_color[0]);
+         header_bg_color ? &header_bg_color[0] : NULL);
 
    mui->tabs_height = 0;
 
@@ -1592,6 +1601,13 @@ static void materialui_frame(void *data, video_frame_info_t *video_info)
 
    if (menu_entries_ctl(MENU_ENTRIES_CTL_SHOW_BACK, NULL))
    {
+      float pure_white[16] = {
+         1.00, 1.00, 1.00, 1.00,
+         1.00, 1.00, 1.00, 1.00,
+         1.00, 1.00, 1.00, 1.00,
+         1.00, 1.00, 1.00, 1.00,
+      };
+
       title_margin = mui->icon_size;
       materialui_draw_icon(video_info,
             mui->icon_size,

menu/menu_shader.c

@@ -141,19 +141,19 @@ bool menu_shader_manager_init(void)
       }
    }
 
-   if (!string_is_empty(new_path))
+   if (
-   {
+         !string_is_empty(new_path) && conf &&
-      if (conf)
+         video_shader_read_conf_cgp(conf, menu_driver_shader)
-      {
+      )
-         if (video_shader_read_conf_cgp(conf, menu_driver_shader))
    {
       video_shader_resolve_relative(menu_driver_shader, new_path);
       video_shader_resolve_parameters(conf, menu_driver_shader);
    }
-         config_file_free(conf);
+
-      }
+   if (new_path)
       free(new_path);
-   }
+   if (conf)
+      config_file_free(conf);
 
    return true;
 }