Sun_sasCloseAdapter.c revision 9e86db79b7d1bbc5f2f04e99954cbd5eae0e22bb
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sun_sas.h>
/*
* Closes an adapter
*
* the handle is removed from the open_handles list
*/
void
Sun_sasCloseAdapter(HBA_HANDLE handle)
{
const char ROUTINE[] = "Sun_sasCloseAdapter";
struct open_handle *open_handle_ptr, *open_handle_prev_ptr;
int found = 0;
if (global_hba_head == NULL) {
log(LOG_DEBUG, ROUTINE,
"Attempted to close an invalid handle %08lx. "
"There are no hba handles loaded in the VSL.",
handle);
return;
}
/* Removing handle from open_handles; */
lock(&open_handles_lock);
if (global_hba_head->open_handles == NULL) {
/* check to see if there are any open global_hba_head */
log(LOG_DEBUG, ROUTINE,
"Attempted to close an invalid handle %08lx. "
"There are no open handles in the VSL.",
handle);
} else if (global_hba_head->open_handles->next == NULL) {
/* there is only one handle open */
if (global_hba_head->open_handles->handle == handle) {
free(global_hba_head->open_handles);
global_hba_head->open_handles = NULL;
} else {
log(LOG_DEBUG, ROUTINE,
"Attempted to close an invalid handle %08lx. "
"Unable to find handle to close.", handle);
}
} else { /* there is more than one handle open */
open_handle_ptr = global_hba_head->open_handles;
if (open_handle_ptr->handle == handle) {
global_hba_head->open_handles = open_handle_ptr->next;
free(open_handle_ptr);
} else {
for (open_handle_ptr = open_handle_ptr->next,
open_handle_prev_ptr =
global_hba_head->open_handles;
open_handle_ptr != NULL;
open_handle_ptr = open_handle_ptr->next) {
if (open_handle_ptr->handle == handle) {
open_handle_prev_ptr->next =
open_handle_ptr->next;
free(open_handle_ptr);
found = 1;
break;
} else {
open_handle_prev_ptr =
open_handle_prev_ptr->next;
}
}
if (found == 0) {
log(LOG_DEBUG, ROUTINE,
"Attempted to close an invalid handle "
"%08lx. Unable to find handle to close.",
handle);
}
}
}
unlock(&open_handles_lock);
}