Commit 13bd14a4 authored by Kangjie Lu's avatar Kangjie Lu Committed by Greg Kroah-Hartman
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char: hpet: fix a missing check of ioremap 



Check if ioremap fails, and if so, return AE_ERROR.

Signed-off-by: default avatarKangjie Lu <kjlu@umn.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d8fb3faf

drivers/char/hpet.c

+2 −0
Original line number Diff line number Diff line
@@ -973,6 +973,8 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data) 
	if (ACPI_SUCCESS(status)) {

		hdp->hd_phys_address = addr.address.minimum;

		hdp->hd_address = ioremap(addr.address.minimum, addr.address.address_length);

		if (!hdp->hd_address)

			return AE_ERROR;



		if (hpet_is_known(hdp)) {

			iounmap(hdp->hd_address);