From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Herrmann Date: Thu, 23 Jan 2014 14:14:56 +0000 Subject: [PATCH 04/11] fbdev: vesafb: add dev->remove() callback Message-Id: <1390486503-1504-5-git-send-email-dh.herrmann@gmail.com> List-Id: References: <1390486503-1504-1-git-send-email-dh.herrmann@gmail.com> In-Reply-To: <1390486503-1504-1-git-send-email-dh.herrmann@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org, Daniel Vetter , linux-kernel@vger.kernel.org, Tomi Valkeinen , Ingo Molnar If x86-sysfb platform-devices are removed from a system, we should properly unload vesafb. Otherwise, we end up releasing the parent while our vesa framebuffer is still running. This currently works just fine, but will cause problems on handover to real hw. So add the ->remove() callback and unregister vesafb. Signed-off-by: David Herrmann --- drivers/video/vesafb.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c index 1c7da3b..6170e7f 100644 --- a/drivers/video/vesafb.c +++ b/drivers/video/vesafb.c @@ -179,7 +179,6 @@ static void vesafb_destroy(struct fb_info *info) if (info->screen_base) iounmap(info->screen_base); release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size); - framebuffer_release(info); } static struct fb_ops vesafb_ops = { @@ -297,6 +296,7 @@ static int vesafb_probe(struct platform_device *dev) release_mem_region(vesafb_fix.smem_start, size_total); return -ENOMEM; } + platform_set_drvdata(dev, info); info->pseudo_palette = info->par; info->par = NULL; @@ -499,12 +499,23 @@ err: return err; } +static int vesafb_remove(struct platform_device *pdev) +{ + struct fb_info *info = platform_get_drvdata(pdev); + + unregister_framebuffer(info); + framebuffer_release(info); + + return 0; +} + static struct platform_driver vesafb_driver = { .driver = { .name = "vesa-framebuffer", .owner = THIS_MODULE, }, .probe = vesafb_probe, + .remove = vesafb_remove, }; module_platform_driver(vesafb_driver); -- 1.8.5.3