From: Aleksey Kuleshov <rndfax@xxxxxxxxx>
Console enable -> alloc shadowfb.
Console disable -> free shadowfb.
Otherwise, if resolution gets changed, shadowfb will not be affected.
Signed-off-by: Aleksey Kuleshov <rndfax@xxxxxxxxx>
---
drivers/video/fb.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fb.c b/drivers/video/fb.c
index 3672c44..bd8bab0 100644
--- a/drivers/video/fb.c
+++ b/drivers/video/fb.c
@@ -31,6 +31,12 @@ static int fb_ioctl(struct cdev* cdev, int req, void *data)
return 0;
}
+static void fb_release_shadowfb(struct fb_info *info)
+{
+ free(info->screen_base_shadow);
+ info->screen_base_shadow = NULL;
+}
+
static int fb_alloc_shadowfb(struct fb_info *info)
{
if (info->screen_base_shadow && info->shadowfb)
@@ -47,8 +53,7 @@ static int fb_alloc_shadowfb(struct fb_info *info)
memcpy(info->screen_base_shadow, info->screen_base,
info->line_length * info->yres);
} else {
- free(info->screen_base_shadow);
- info->screen_base_shadow = NULL;
+ fb_release_shadowfb(info);
}
return 0;
@@ -79,6 +84,8 @@ int fb_disable(struct fb_info *info)
info->fbops->fb_disable(info);
+ fb_release_shadowfb(info);
+
info->enabled = false;
return 0;
--
2.6.2
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