iommu/amd: Signedness bug in acpihid_device_group()
"devid" needs to be signed for the error handling to work.
Fixes: b097d11a0fa3f ('iommu/amd: Manage iommu_group for ACPI HID devices')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c430c10..12f7779 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -283,7 +283,7 @@
static struct iommu_group *acpihid_device_group(struct device *dev)
{
struct acpihid_map_entry *p, *entry = NULL;
- u16 devid;
+ int devid;
devid = get_acpihid_device_id(dev, &entry);
if (devid < 0)