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Wayland: Check for buffer creation failure

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This prevents unusable decoration objects from being created, and
invalid cursors from being returned to the user.
This commit is contained in:
Emmanuel Gil Peyrot 2018-09-29 22:59:00 +02:00
parent 754b7feaa1
commit ab16fcc8db
1 changed files with 7 additions and 2 deletions
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9
src/wl_window.c
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@ -186,7 +186,7 @@ static struct wl_buffer* createShmBuffer(const GLFWimage* image)
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Creating a buffer file for %d B failed: %m",
length);
return GLFW_FALSE;
return NULL;
}
data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
@ -195,7 +195,7 @@ static struct wl_buffer* createShmBuffer(const GLFWimage* image)
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: mmap failed: %m");
close(fd);
return GLFW_FALSE;
return NULL;
}
pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
@ -265,6 +265,8 @@ static void createDecorations(_GLFWwindow* window)
if (!window->wl.decorations.buffer)
window->wl.decorations.buffer = createShmBuffer(&image);
if (!window->wl.decorations.buffer)
return;
createDecoration(&window->wl.decorations.top, window->wl.surface,
window->wl.decorations.buffer, opaque,
@ -1308,6 +1310,9 @@ int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
int xhot, int yhot)
{
cursor->wl.buffer = createShmBuffer(image);
if (!cursor->wl.buffer)
return GLFW_FALSE;
cursor->wl.width = image->width;
cursor->wl.height = image->height;
cursor->wl.xhot = xhot;