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 c430c10fb645a1c78b9d20d7c7587f8e07bd5075..12f77798a0a4c86e0f86000f69690465158809e7 100644 (file)
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -283,7 +283,7 @@ static struct iommu_dev_data *get_dev_data(struct device *dev)
 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)