提交 3bea21b6 编写于 作者: C Clemens Ladisch 提交者: Dave Airlie

drm/kms: allocate framebuffer cmap

Without an allocated colormap, FBIOGETCMAP fails.  This would make
programs restore an all-black colormap ("links -g") or fail to work
altogether ("mplayer -vo fbdev2").
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
Signed-off-by: NDave Airlie <airlied@redhat.com>
上级 7a654158
......@@ -908,8 +908,13 @@ int drm_fb_helper_single_fb_probe(struct drm_device *dev,
if (new_fb) {
info->var.pixclock = 0;
if (register_framebuffer(info) < 0)
ret = fb_alloc_cmap(&info->cmap, crtc->gamma_size, 0);
if (ret)
return ret;
if (register_framebuffer(info) < 0) {
fb_dealloc_cmap(&info->cmap);
return -EINVAL;
}
} else {
drm_fb_helper_set_par(info);
}
......@@ -939,6 +944,7 @@ void drm_fb_helper_free(struct drm_fb_helper *helper)
unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
}
drm_fb_helper_crtc_free(helper);
fb_dealloc_cmap(&helper->fb->fbdev->cmap);
}
EXPORT_SYMBOL(drm_fb_helper_free);
......
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