diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c index 76fe766ad1bc..196424be0998 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c @@ -41,18 +41,21 @@ static void guc_prepare_xfer(struct intel_uncore *uncore) } /* Copy RSA signature from the fw image to HW for verification */ -static void guc_xfer_rsa(struct intel_uc_fw *guc_fw, - struct intel_uncore *uncore) +static int guc_xfer_rsa(struct intel_uc_fw *guc_fw, + struct intel_uncore *uncore) { u32 rsa[UOS_RSA_SCRATCH_COUNT]; size_t copied; int i; copied = intel_uc_fw_copy_rsa(guc_fw, rsa, sizeof(rsa)); - GEM_BUG_ON(copied < sizeof(rsa)); + if (copied < sizeof(rsa)) + return -ENOMEM; for (i = 0; i < UOS_RSA_SCRATCH_COUNT; i++) intel_uncore_write(uncore, UOS_RSA_SCRATCH(i), rsa[i]); + + return 0; } /* @@ -141,7 +144,9 @@ int intel_guc_fw_upload(struct intel_guc *guc) * by the DMA engine in one operation, whereas the RSA signature is * loaded via MMIO. */ - guc_xfer_rsa(&guc->fw, uncore); + ret = guc_xfer_rsa(&guc->fw, uncore); + if (ret) + goto out; /* * Current uCode expects the code to be loaded at 8k; locations below |