It makes all the code which calls into this function way too confusing.

v2: Fix destroy IOCTL as well

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=72903
Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
---
 drivers/gpu/drm/i915/i915_gem_context.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c 
b/drivers/gpu/drm/i915/i915_gem_context.c
index a90a0a1..f3ac9a2 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -524,10 +524,16 @@ void i915_gem_context_close(struct drm_device *dev, 
struct drm_file *file)
 struct i915_hw_context *
 i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id)
 {
+       struct i915_hw_context *ctx;
+
        if (!HAS_HW_CONTEXTS(file_priv->dev_priv->dev))
                return file_priv->private_default_ctx;
 
-       return (struct i915_hw_context *)idr_find(&file_priv->context_idr, id);
+       ctx = (struct i915_hw_context *)idr_find(&file_priv->context_idr, id);
+       if (!ctx)
+               return ERR_PTR(-ENOENT);
+
+       return ctx;
 }
 
 static inline int
@@ -774,9 +780,9 @@ int i915_gem_context_destroy_ioctl(struct drm_device *dev, 
void *data,
                return ret;
 
        ctx = i915_gem_context_get(file_priv, args->ctx_id);
-       if (!ctx) {
+       if (IS_ERR(ctx)) {
                mutex_unlock(&dev->struct_mutex);
-               return -ENOENT;
+               return PTR_ERR(ctx);
        }
 
        idr_remove(&ctx->file_priv->context_idr, ctx->id);
-- 
1.8.5.2

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