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authorColin Ian King <colin.king@canonical.com>2021-02-04 18:00:01 +0300
committerJoerg Roedel <jroedel@suse.de>2021-02-05 11:49:47 +0300
commit7a5661739d4bf23cd356fb13bb1e0790e09df3c5 (patch)
treeed2b5f8ad31bd3aec73161bd8a5e8a25f4c425ad /drivers/iommu
parentb8437a3ef8c485903d05d1f261328aaf0c0a6cc2 (diff)
downloadlinux-7a5661739d4bf23cd356fb13bb1e0790e09df3c5.tar.xz
iommu/mediatek: Fix unsigned domid comparison with less than zero
Currently the check for domid < 0 is always false because domid is unsigned. Fix this by casting domid to an int before making the comparison. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210204150001.102672-1-colin.king@canonical.com Addresses-Coverity: ("Unsigned comparison against 0") Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/mtk_iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 0ad14a7604b1..1f262621ef19 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -645,7 +645,7 @@ static void mtk_iommu_get_resv_regions(struct device *dev,
struct iommu_resv_region *region;
int prot = IOMMU_WRITE | IOMMU_READ;
- if (domid < 0)
+ if ((int)domid < 0)
return;
curdom = data->plat_data->iova_region + domid;
for (i = 0; i < data->plat_data->iova_region_nr; i++) {