[snip]
> --- linux-x86.orig/drivers/acpi/bgrt.c
> +++ linux-x86/drivers/acpi/bgrt.c
[snip]
>
> @@ -84,9 +85,17 @@ static int __init bgrt_init(void)
> {
> int ret;
>
> - if (!bgrt_image)
> + if (!bgrt_tab.image_address)
> return -ENODEV;
>
> + bgrt_image = memremap(bgrt_tab.image_address, bgrt_image_size,
> + MEMREMAP_WB);
> + if (!bgrt_image) {
> + pr_notice("Ignoring BGRT: failed to map image memory\n");
> + bgrt_image = NULL;
> + return -ENOMEM;
> + }
> +
Oops, later error path need unmap bgrt_image, will update in next
version after collecting more comments.
Also bgrt_image = NULL is useless, will drop it.
> bin_attr_image.private = bgrt_image;
> bin_attr_image.size = bgrt_image_size;
>
Thanks
Dave
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