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Commit 13bd14a4 authored Mar 08, 2019 by Kangjie Lu Committed by Greg Kroah-Hartman Mar 28, 2019

char: hpet: fix a missing check of ioremap



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

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Greg 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);