v3dv: check returned values

Check if v3dv_ioctl() or v3dv_bo_map() fail, and print a proper error
message.

This check happens in the rest of the code, so it makes sense to apply
here too.

Fixes CID#1468162 "Unchecked return value (CHECKED_RETURN)".

v2:
 - Fix message error (Iago)

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10380>

src/broadcom/vulkan/v3dv_device.c

@@ -1546,7 +1546,9 @@ device_free_wsi_dumb(int32_t display_fd, int32_t dumb_handle)
    struct drm_mode_destroy_dumb destroy_dumb = {
       .handle = dumb_handle,
    };
-   v3dv_ioctl(display_fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_dumb);
+   if (v3dv_ioctl(display_fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_dumb)) {
+      fprintf(stderr, "destroy dumb object %d: %s\n", dumb_handle, strerror(errno));
+   }
 }
 
 static void

src/broadcom/vulkan/v3dv_queue.c

@@ -46,7 +46,12 @@ v3dv_clif_dump(struct v3dv_device *device,
       char *name = ralloc_asprintf(NULL, "%s_0x%x",
                                    bo->name, bo->offset);
 
-      v3dv_bo_map(device, bo, bo->size);
+      bool ok = v3dv_bo_map(device, bo, bo->size);
+      if (!ok) {
+         fprintf(stderr, "failed to map BO for clif_dump.\n");
+         ralloc_free(name);
+         goto free_clif;
+      }
       clif_dump_add_bo(clif, name, bo->offset, bo->size, bo->map);
 
       ralloc_free(name);
@@ -54,6 +59,7 @@ v3dv_clif_dump(struct v3dv_device *device,
 
    clif_dump(clif, submit);
 
+ free_clif:
    clif_dump_destroy(clif);
 }