Commit 4674686d authored by yzhai003@ucr.edu's avatar yzhai003@ucr.edu Committed by Joerg Roedel

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: default avataryzhai003@ucr.edu <yzhai003@ucr.edu>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 021c9179
...@@ -1404,6 +1404,8 @@ static u64 *fetch_pte(struct protection_domain *domain, ...@@ -1404,6 +1404,8 @@ static u64 *fetch_pte(struct protection_domain *domain,
int level; int level;
u64 *pte; u64 *pte;
*page_size = 0;
if (address > PM_LEVEL_SIZE(domain->mode)) if (address > PM_LEVEL_SIZE(domain->mode))
return NULL; return NULL;
......
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