diff options
Diffstat (limited to 'drivers/video/fbdev/core')
| -rw-r--r-- | drivers/video/fbdev/core/fb_defio.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c index dc3b4dc4d507..a10ba09639ad 100644 --- a/drivers/video/fbdev/core/fb_defio.c +++ b/drivers/video/fbdev/core/fb_defio.c @@ -62,6 +62,14 @@ out: return pageref; } +static void fb_deferred_io_pageref_clear(struct fb_deferred_io_pageref *pageref) +{ + struct page *page = pageref->page; + + if (page) + page->mapping = NULL; +} + static struct fb_deferred_io_pageref *fb_deferred_io_pageref_get(struct fb_info *info, unsigned long offset, struct page *page) @@ -330,16 +338,13 @@ EXPORT_SYMBOL_GPL(fb_deferred_io_open); static void fb_deferred_io_lastclose(struct fb_info *info) { - struct page *page; - int i; + unsigned long i; flush_delayed_work(&info->deferred_work); /* clear out the mapping that we setup */ - for (i = 0 ; i < info->fix.smem_len; i += PAGE_SIZE) { - page = fb_deferred_io_page(info, i); - page->mapping = NULL; - } + for (i = 0; i < info->npagerefs; ++i) + fb_deferred_io_pageref_clear(&info->pagerefs[i]); } void fb_deferred_io_release(struct fb_info *info) |