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xenbus: simplify xenbus_dev_request_and_reply() 

No need to retain a local copy of the full request message, only the
type is really needed.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
hifive-unleashed-5.1
Jan Beulich 2016-07-07 01:32:35 -06:00 committed by David Vrabel
parent 7469be95a4
commit e5a79475a7
1 changed files with 3 additions and 4 deletions
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7
drivers/xen/xenbus/xenbus_xs.c
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@ -232,10 +232,10 @@ static void transaction_resume(void)
void *xenbus_dev_request_and_reply(struct xsd_sockmsg *msg)
{
void *ret;
struct xsd_sockmsg req_msg = *msg;
enum xsd_sockmsg_type type = msg->type;
int err;
if (req_msg.type == XS_TRANSACTION_START)
if (type == XS_TRANSACTION_START)
transaction_start();
mutex_lock(&xs_state.request_mutex);
@ -250,8 +250,7 @@ void *xenbus_dev_request_and_reply(struct xsd_sockmsg *msg)
mutex_unlock(&xs_state.request_mutex);
if ((msg->type == XS_TRANSACTION_END) ||
((req_msg.type == XS_TRANSACTION_START) &&
(msg->type == XS_ERROR)))
((type == XS_TRANSACTION_START) && (msg->type == XS_ERROR)))
transaction_end();
return ret;