Commit 4674686d authored Jun 01, 2018 by yzhai003@ucr.edu Committed by Joerg Roedel Jul 06, 2018

iommu/amd: Argument page_size could be uninitialized



Argument "page_size" passing to function "fetch_pte" could be
uninitialized if the function returns NULL

The caller "iommu_unmap_page" checks the return value but the page_size is
used outside the if block.

Signed-off-by: yzhai003@ucr.edu <yzhai003@ucr.edu>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent 021c9179

drivers/iommu/amd_iommu.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1404,6 +1404,8 @@ static u64 fetch_pte(struct protection_domain domain,
		int level;
		u64 *pte;

		*page_size = 0;

		if (address > PM_LEVEL_SIZE(domain->mode))
		return NULL;