client/pool-buffer: munmap in destroy_buffer

1 files changed, 6 insertions, 1 deletions

diff --git a/client/pool-buffer.c b/client/pool-buffer.c
index 7610d223..52438303 100644
--- a/client/pool-buffer.c
+++ b/client/pool-buffer.c
@@ -72,7 +72,7 @@ static struct pool_buffer *create_buffer(struct wl_shm *shm,
                 struct pool_buffer *buf, int32_t width, int32_t height,
                 uint32_t format) {
         uint32_t stride = width * 4;
-        uint32_t size = stride * height;
+        size_t size = stride * height;
 
         char *name;
         int fd = create_pool_file(size, &name);
@@ -87,8 +87,10 @@ static struct pool_buffer *create_buffer(struct wl_shm *shm,
         free(name);
         fd = -1;
 
+        buf->size = size;
         buf->width = width;
         buf->height = height;
+        buf->data = data;
         buf->surface = cairo_image_surface_create_for_data(data,
                         CAIRO_FORMAT_ARGB32, width, height, stride);
         buf->cairo = cairo_create(buf->surface);
@@ -111,6 +113,9 @@ void destroy_buffer(struct pool_buffer *buffer) {
         if (buffer->pango) {
                 g_object_unref(buffer->pango);
         }
+        if (buffer->data) {
+                munmap(buffer->data, buffer->size);
+        }
         memset(buffer, 0, sizeof(struct pool_buffer));
 }