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staging: unisys: visorbus: NULL pending_msg_hdr not an error 

A NULL pending_msg_hdr is not an error, it just means that the firmware
does not want an error response for that message.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Kershner 2017-09-27 13:14:16 -04:00 committed by Greg Kroah-Hartman
parent 17e4bddadc
commit fd9e450cf5
2 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/staging/unisys/visorbus/visorbus_main.c
View File

@ -690,8 +690,9 @@ void remove_visor_device(struct visor_device *dev)
{
list_del(&dev->list_all);
put_device(&dev->device);
if (dev->pending_msg_hdr)
visorbus_response(dev, 0, CONTROLVM_DEVICE_DESTROY);
device_unregister(&dev->device);
visorbus_response(dev, 0, CONTROLVM_DEVICE_DESTROY);
}
static int get_vbus_header_info(struct visorchannel *chan,

13
drivers/staging/unisys/visorbus/visorchipset.c
View File

@ -481,9 +481,6 @@ static int controlvm_responder(enum controlvm_id cmd_id,
struct controlvm_message_header *pending_msg_hdr,
int response)
{
if (!pending_msg_hdr)
return -EIO;
if (pending_msg_hdr->id != (u32)cmd_id)
return -EINVAL;
@ -497,8 +494,6 @@ static int device_changestate_responder(
{
struct controlvm_message outmsg;
if (!p->pending_msg_hdr)
return -EIO;
if (p->pending_msg_hdr->id != cmd_id)
return -EINVAL;
@ -1391,8 +1386,10 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
void visorbus_response(struct visor_device *bus_info, int response,
int controlvm_id)
{
controlvm_responder(controlvm_id, bus_info->pending_msg_hdr, response);
if (!bus_info->pending_msg_hdr)
return;
controlvm_responder(controlvm_id, bus_info->pending_msg_hdr, response);
kfree(bus_info->pending_msg_hdr);
bus_info->pending_msg_hdr = NULL;
}
@ -1401,9 +1398,11 @@ void visorbus_device_changestate_response(struct visor_device *dev_info,
int response,
struct visor_segment_state state)
{
if (!dev_info->pending_msg_hdr)
return;
device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE, dev_info,
response, state);
kfree(dev_info->pending_msg_hdr);
dev_info->pending_msg_hdr = NULL;
}