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Commit 65111b1f authored by Prakash Gupta's avatar Prakash Gupta Committed by Liam Mark
Browse files

iommu: ignore scm_call return if SMC_ID not supported 



Not all targets support hyp_assign. Ignore the return error if scm_call
return indicate that SMC_ID is not supported.

Change-Id: Ia3e25b1c7d1f4b24f6da0143901aa1cb9a8ea3e2
Signed-off-by: default avatarPrakash Gupta <guptap@codeaurora.org>
parent 29a9c35b

drivers/iommu/arm-smmu-errata.c

+2 −2
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017, The Linux Foundation. All rights reserved.

 * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -41,7 +41,7 @@ struct page *arm_smmu_errata_get_guard_page(int vmid) 
		ret = hyp_assign_phys(page_to_phys(page), PAGE_ALIGN(size),

				&source_vm, 1,

				&dest_vm, &dest_perm, 1);

		if (ret) {

		if (ret && (ret != -EIO)) {

			__free_pages(page, get_order(size));

			page = NULL;

		}