[PATCH v3 4/4] drm/msm: Fix per-process-pgtables check

[Rob Clark]

ctx->vm should not be inialized yet (or if it has, an error is returned
immediately following this check), so this isn't a valid way to check
for per-process-pgtable support.

Instead just check if create_private_vm() is supported.

Reported-by: Sashiko <sashiko-bot@xxxxxxxxxx>
Fixes: feb8ef4636a4 ("drm/msm: Add opt-in for VM_BIND")
Signed-off-by: Rob Clark <robin.clark@xxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index c62c45bb0ddb..bff2a773c0d4 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -505,7 +505,7 @@ int adreno_set_param(struct msm_gpu *gpu, struct msm_context *ctx,
 		return msm_context_set_sysprof(ctx, gpu, value);
 	case MSM_PARAM_EN_VM_BIND:
 		/* We can only support VM_BIND with per-process pgtables: */
-		if (ctx->vm == gpu->vm)
+		if (!gpu->funcs->create_private_vm)
 			return UERR(EINVAL, drm, "requires per-process pgtables");
 
 		/*
-- 
2.54.0