[PATCH v2 11/11] gpu: nova-core: vbios: reject extra PCI-AT and FWSEC images

[Eliot Courtney <ecourtney@nvidia.com>]

Currently, these are silently overwritten. Instead, error if they appear
twice in the VBIOS.

Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
---
 drivers/gpu/nova-core/vbios.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/nova-core/vbios.rs b/drivers/gpu/nova-core/vbios.rs
index 5cc251c73800..a9294b68ea77 100644
--- a/drivers/gpu/nova-core/vbios.rs
+++ b/drivers/gpu/nova-core/vbios.rs
@@ -251,13 +251,20 @@ pub(crate) fn new(dev: &device::Device, bar0: &Bar0) -> Result<Vbios> {
             // Convert to a specific image type
             match BiosImageType::try_from(image.pcir.code_type) {
                 Ok(BiosImageType::PciAt) => {
+                    if pci_at_image.is_some() {
+                        dev_err!(dev, "More than 1 PCI-AT image found\n");
+                        return Err(EINVAL);
+                    }
                     pci_at_image = Some(PciAtBiosImage::try_from(image)?);
                 }
                 Ok(BiosImageType::FwSec) => {
                     if first_fwsec_image.is_none() {
                         first_fwsec_image = Some(image);
-                    } else {
+                    } else if second_fwsec_image.is_none() {
                         second_fwsec_image = Some(image);
+                    } else {
+                        dev_err!(dev, "More than 2 FwSec images found\n");
+                        return Err(EINVAL);
                     }
                 }
                 _ => {

-- 
2.53.0