[Linux-fbdev-devel] [PATCH] Add fb_destroy() callback to free up reserved memory.

[Peter J. <pj...@re...>]

We reserve some memory in efifb_probe that needs to be freed when we
handoff to a KMS driver.  Also unmap the ioremap() done during
probe/setup.
---
 drivers/video/efifb.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index eb12182..41ba8cc 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -135,6 +135,14 @@ static int set_system(const struct dmi_system_id *id)
 	return 0;
 }
 
+static int efifb_destroy(struct fb_info *info)
+{
+	if (info->screen_base)
+		iounmap(info->screen_base);
+	release_mem_region(info->aperture_base, info->aperture_size);
+	framebuffer_release(info);
+}
+
 static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
 			   unsigned blue, unsigned transp,
 			   struct fb_info *info)
@@ -163,6 +171,7 @@ static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
 
 static struct fb_ops efifb_ops = {
 	.owner		= THIS_MODULE,
+	.fb_destroy	= efifb_destroy,
 	.fb_setcolreg	= efifb_setcolreg,
 	.fb_fillrect	= cfb_fillrect,
 	.fb_copyarea	= cfb_copyarea,
-- 
1.6.2.2