From: Matt Fleming <[email protected]>
It has been reported that running this driver on some Samsung laptops
with EFI can cause those machines to become bricked as detailed in the
following report,
https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557
There have also been reports of this driver causing Machine Check
Exceptions on recent EFI-enabled Samsung laptops,
https://bugzilla.kernel.org/show_bug.cgi?id=47121
So disable it if booting from EFI since this driver relies on
grovelling around in the BIOS memory map which isn't going to work.
Acked-by: H. Peter Anvin <[email protected]>
Cc: Corentin Chary <[email protected]>
Cc: Matthew Garrett <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Steve Langasek <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Matt Fleming <[email protected]>
---
drivers/platform/x86/samsung-laptop.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/platform/x86/samsung-laptop.c
b/drivers/platform/x86/samsung-laptop.c
index dd90d15..a94c0ee 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1534,6 +1534,9 @@ static int __init samsung_init(void)
struct samsung_laptop *samsung;
int ret;
+ if (efi_enabled(EFI_BOOT))
+ return -ENODEV;
+
quirks = &samsung_unknown;
if (!force && !dmi_check_system(samsung_dmi_table))
return -ENODEV;
--
1.7.11.7
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