Re: [PATCH] drm/i915: Clean-up idr table if context create fails.

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On Monday 30 March 2015 09:13 PM, Daniel Vetter wrote:
On Mon, Mar 30, 2015 at 08:03:58PM +0530, deepak.s@xxxxxxxxxxxxxxx wrote:
From: Deepak S <deepak.s@xxxxxxxxxxxxxxx>

Cleanup idr table if any error happens after __create_hw_context() in
i915_gem_create_context()

Signed-off-by: Deepak S <deepak.s@xxxxxxxxxxxxxxx>
---
  drivers/gpu/drm/i915/i915_gem_context.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index f3e84c4..69bebe5 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -287,6 +287,8 @@ err_unpin:
  	if (is_global_default_ctx && ctx->legacy_hw_ctx.rcs_state)
  		i915_gem_object_ggtt_unpin(ctx->legacy_hw_ctx.rcs_state);
  err_destroy:
+	if (ctx->file_priv)
+		idr_remove(&ctx->file_priv->context_idr, ctx->user_handle);
The common approach is to add a new err_idr: label at the op of the unwind
code and make the call to idr_remove unconditional.

Thanks, Daniel

Thanks Daniel for review.
I do not think we can have a unconditional idr remove since for global ctx
i915_gem_create_context called with file_priv=NULL?

- Thanks, Deepak

  	i915_gem_context_unreference(ctx);
  	return ERR_PTR(ret);
  }
--
1.9.1

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