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pds_vdpa: clear config callback when status goes to 0
[ Upstream commit dd3b8de16e90c5594eddd29aeeb99e97c6f863be ] If the client driver is setting status to 0, something is getting shutdown and possibly removed. Make sure we clear the config_cb so that it doesn't end up crashing when trying to call a bogus callback. Signed-off-by: Shannon Nelson <shannon.nelson@amd.com> Message-Id: <20231110221802.46841-3-shannon.nelson@amd.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 3 additions and 1 deletions
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@ -461,8 +461,10 @@ static void pds_vdpa_set_status(struct vdpa_device *vdpa_dev, u8 status)
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pds_vdpa_cmd_set_status(pdsv, status);
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/* Note: still working with FW on the need for this reset cmd */
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if (status == 0) {
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struct vdpa_callback null_cb = { };
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pds_vdpa_set_config_cb(vdpa_dev, &null_cb);
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pds_vdpa_cmd_reset(pdsv);
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for (i = 0; i < pdsv->num_vqs; i++) {
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