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misc: fastrpc: handle interrupted contexts
Buffers owned by a context that has been interrupted either by a signal or a timeout might still be being accessed by the DSP. delegate returning the associated memory to a later time when the device is released. Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20191009144123.24583-5-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -984,12 +984,13 @@ static int fastrpc_internal_invoke(struct fastrpc_user *fl, u32 kernel,
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}
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bail:
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/* We are done with this compute context, remove it from pending list */
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spin_lock(&fl->lock);
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list_del(&ctx->node);
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spin_unlock(&fl->lock);
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fastrpc_context_put(ctx);
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if (err != -ERESTARTSYS && err != -ETIMEDOUT) {
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/* We are done with this compute context */
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spin_lock(&fl->lock);
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list_del(&ctx->node);
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spin_unlock(&fl->lock);
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fastrpc_context_put(ctx);
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}
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if (err)
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dev_dbg(fl->sctx->dev, "Error: Invoke Failed %d\n", err);
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