Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 6.6 25/47] pds_vdpa: clear config callback when status goes to 0 | Date | Mon, 11 Dec 2023 08:50:26 -0500 |
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From: Shannon Nelson <shannon.nelson@amd.com>
[ 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> --- drivers/vdpa/pds/vdpa_dev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/vdpa/pds/vdpa_dev.c b/drivers/vdpa/pds/vdpa_dev.c index 52b2449182ad7..9fc89c82d1f01 100644 --- a/drivers/vdpa/pds/vdpa_dev.c +++ b/drivers/vdpa/pds/vdpa_dev.c @@ -461,8 +461,10 @@ static void pds_vdpa_set_status(struct vdpa_device *vdpa_dev, u8 status) pds_vdpa_cmd_set_status(pdsv, status); - /* Note: still working with FW on the need for this reset cmd */ if (status == 0) { + struct vdpa_callback null_cb = { }; + + pds_vdpa_set_config_cb(vdpa_dev, &null_cb); pds_vdpa_cmd_reset(pdsv); for (i = 0; i < pdsv->num_vqs; i++) { -- 2.42.0
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