bb81733de2
'cxl_dev_context_init()' returns an error pointer in case of error, not NULL. So test it with IS_ERR. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/*
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* Copyright 2014-2016 IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/pci.h>
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#include "cxl.h"
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bool _cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu)
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{
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struct cxl_context *ctx;
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/*
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* Allocate a context to do cxl things to. This is used for interrupts
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* in the peer model using a real phb, and if we eventually do DMA ops
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* in the virtual phb, we'll need a default context to attach them to.
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*/
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ctx = cxl_dev_context_init(dev);
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if (IS_ERR(ctx))
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return false;
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dev->dev.archdata.cxl_ctx = ctx;
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return (cxl_ops->afu_check_and_enable(afu) == 0);
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}
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/* exported via cxl_base */
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void _cxl_pci_disable_device(struct pci_dev *dev)
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{
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struct cxl_context *ctx = cxl_get_context(dev);
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if (ctx) {
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if (ctx->status == STARTED) {
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dev_err(&dev->dev, "Default context started\n");
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return;
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}
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dev->dev.archdata.cxl_ctx = NULL;
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cxl_release_context(ctx);
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}
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}
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/* exported via cxl_base */
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