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https://github.com/xen-project/xen.git
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Ian Campbell
7db1f6a67d
Otherwise the osdep close on the error path touches an uninitialised varialble. CID: 1351231 (foreignmemory) and 1351230 (call) Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com>
150 lines
3.4 KiB
C
150 lines
3.4 KiB
C
/*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include "private.h"
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xencall_handle *xencall_open(xentoollog_logger *logger, unsigned open_flags)
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{
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xencall_handle *xcall = malloc(sizeof(*xcall));
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int rc;
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if (!xcall) return NULL;
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xcall->fd = -1;
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xcall->flags = open_flags;
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xcall->buffer_cache_nr = 0;
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xcall->buffer_total_allocations = 0;
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xcall->buffer_total_releases = 0;
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xcall->buffer_current_allocations = 0;
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xcall->buffer_maximum_allocations = 0;
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xcall->buffer_cache_hits = 0;
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xcall->buffer_cache_misses = 0;
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xcall->buffer_cache_toobig = 0;
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xcall->logger = logger;
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xcall->logger_tofree = NULL;
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if (!xcall->logger) {
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xcall->logger = xcall->logger_tofree =
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(xentoollog_logger*)
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xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
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if (!xcall->logger) goto err;
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}
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rc = osdep_xencall_open(xcall);
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if ( rc < 0 ) goto err;
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return xcall;
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err:
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osdep_xencall_close(xcall);
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xtl_logger_destroy(xcall->logger_tofree);
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free(xcall);
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return NULL;
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}
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int xencall_close(xencall_handle *xcall)
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{
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int rc;
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if ( !xcall )
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return 0;
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rc = osdep_xencall_close(xcall);
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buffer_release_cache(xcall);
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xtl_logger_destroy(xcall->logger_tofree);
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free(xcall);
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return rc;
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}
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int xencall0(xencall_handle *xcall, unsigned int op)
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{
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privcmd_hypercall_t call = {
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.op = op,
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};
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return osdep_hypercall(xcall, &call);
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}
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int xencall1(xencall_handle *xcall, unsigned int op,
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uint64_t arg1)
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{
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privcmd_hypercall_t call = {
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.op = op,
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.arg = { arg1 },
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};
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return osdep_hypercall(xcall, &call);
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}
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int xencall2(xencall_handle *xcall, unsigned int op,
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uint64_t arg1, uint64_t arg2)
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{
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privcmd_hypercall_t call = {
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.op = op,
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.arg = { arg1, arg2 },
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};
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return osdep_hypercall(xcall, &call);
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}
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int xencall3(xencall_handle *xcall, unsigned int op,
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uint64_t arg1, uint64_t arg2, uint64_t arg3)
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{
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privcmd_hypercall_t call = {
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.op = op,
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.arg = { arg1, arg2, arg3},
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};
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return osdep_hypercall(xcall, &call);
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}
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int xencall4(xencall_handle *xcall, unsigned int op,
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uint64_t arg1, uint64_t arg2, uint64_t arg3,
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uint64_t arg4)
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{
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privcmd_hypercall_t call = {
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.op = op,
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.arg = { arg1, arg2, arg3, arg4 },
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};
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return osdep_hypercall(xcall, &call);
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}
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int xencall5(xencall_handle *xcall, unsigned int op,
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uint64_t arg1, uint64_t arg2, uint64_t arg3,
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uint64_t arg4, uint64_t arg5)
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{
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privcmd_hypercall_t call = {
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.op = op,
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.arg = { arg1, arg2, arg3, arg4, arg5 },
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};
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return osdep_hypercall(xcall, &call);
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}
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/*
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* Local variables:
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* mode: C
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* c-file-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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