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haven: msgq: Initialize the cap-id with U64_MAX

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Currently, the cap-id for Tx and Rx of the message-queue are
initialized with 0. However, 0 is a valid value for cap-id.
A better value to initialize the cap-id is with U64_MAX. Hence,
make corrections to use U64_MAX, defined as HH_CAPID_INVAL, in
the message-queue driver.

Change-Id: Ia501e87dc3cb8d880ea3d35ff000ca07b64aeced
Signed-off-by: Raghavendra Rao Ananta <[email protected]>
This commit is contained in:
Raghavendra Rao Ananta 2020-03-16 20:35:03 -07:00 • committed by Murali Nalajala
commit 1bdf8b9d3e
2 changed files with 7 additions and 2 deletions
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6
drivers/virt/haven/hh_msgq.c
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@ -141,7 +141,7 @@ int hh_msgq_recv(void *msgq_client_desc,
goto err;
}
if (!cap_table_entry->rx_cap_id) {
if (cap_table_entry->rx_cap_id == HH_CAPID_INVAL) {
pr_err("%s: Recv info for label %d not yet initialized\n",
__func__, client_desc->label);
ret = -EAGAIN;
@ -263,7 +263,7 @@ int hh_msgq_send(void *msgq_client_desc,
goto err;
}
if (!cap_table_entry->tx_cap_id) {
if (cap_table_entry->tx_cap_id == HH_CAPID_INVAL) {
pr_err("%s: Send info for label %d not yet initialized\n",
__func__, client_desc->label);
ret = -EAGAIN;
@ -482,6 +482,8 @@ static int __init hh_msgq_init(void)
for (i = 0; i < HH_MSGQ_LABEL_MAX; i++) {
cap_table_entry = &hh_msgq_cap_table[i];
cap_table_entry->tx_cap_id = HH_CAPID_INVAL;
cap_table_entry->rx_cap_id = HH_CAPID_INVAL;
cap_table_entry->tx_full = false;
cap_table_entry->rx_empty = true;
init_waitqueue_head(&cap_table_entry->tx_wq);