Support for Humusoft MF624 data acquisition card.

[lisovros/qemu_apohw.git] / qemu-io.c

diff --git a/qemu-io.c b/qemu-io.c
index 9fcd72bb1093d7b2528dbb09ad7eae5a66d56439..b55a550f27097af016bc8b02f7bc7fc40f83e955 100644 (file)
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -54,6 +54,7 @@ static int openfile(char *name, int flags, int growable, QDict *opts)
 
     if (qemuio_bs) {
         fprintf(stderr, "file open already, try 'help close'\n");
+        QDECREF(opts);
         return 1;
     }
 
@@ -61,7 +62,8 @@ static int openfile(char *name, int flags, int growable, QDict *opts)
         if (bdrv_open(&qemuio_bs, name, NULL, opts, flags | BDRV_O_PROTOCOL,
                       NULL, &local_err))
         {
-            fprintf(stderr, "%s: can't open device %s: %s\n", progname, name,
+            fprintf(stderr, "%s: can't open%s%s: %s\n", progname,
+                    name ? " device " : "", name ?: "",
                     error_get_pretty(local_err));
             error_free(local_err);
             return 1;
@@ -72,7 +74,8 @@ static int openfile(char *name, int flags, int growable, QDict *opts)
         if (bdrv_open(&qemuio_bs, name, NULL, opts, flags, NULL, &local_err)
             < 0)
         {
-            fprintf(stderr, "%s: can't open device %s: %s\n", progname, name,
+            fprintf(stderr, "%s: can't open%s%s: %s\n", progname,
+                    name ? " device " : "", name ?: "",
                     error_get_pretty(local_err));
             error_free(local_err);
             bdrv_unref(qemuio_bs);
@@ -118,6 +121,7 @@ static const cmdinfo_t open_cmd = {
 
 static QemuOptsList empty_opts = {
     .name = "drive",
+    .merge_lists = true,
     .head = QTAILQ_HEAD_INITIALIZER(empty_opts.head),
     .desc = {
         /* no elements => accept any params */
@@ -132,7 +136,7 @@ static int open_f(BlockDriverState *bs, int argc, char **argv)
     int growable = 0;
     int c;
     QemuOpts *qopts;
-    QDict *opts = NULL;
+    QDict *opts;
 
     while ((c = getopt(argc, argv, "snrgo:")) != EOF) {
         switch (c) {
@@ -149,15 +153,14 @@ static int open_f(BlockDriverState *bs, int argc, char **argv)
             growable = 1;
             break;
         case 'o':
-            qopts = qemu_opts_parse(&empty_opts, optarg, 0);
-            if (qopts == NULL) {
+            if (!qemu_opts_parse(&empty_opts, optarg, 0)) {
                 printf("could not parse option list -- %s\n", optarg);
+                qemu_opts_reset(&empty_opts);
                 return 0;
             }
-            opts = qemu_opts_to_qdict(qopts, opts);
-            qemu_opts_del(qopts);
             break;
         default:
+            qemu_opts_reset(&empty_opts);
             return qemuio_command_usage(&open_cmd);
         }
     }
@@ -166,11 +169,16 @@ static int open_f(BlockDriverState *bs, int argc, char **argv)
         flags |= BDRV_O_RDWR;
     }
 
+    qopts = qemu_opts_find(&empty_opts, NULL);
+    opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL;
+    qemu_opts_reset(&empty_opts);
+
     if (optind == argc - 1) {
         return openfile(argv[optind], flags, growable, opts);
     } else if (optind == argc) {
         return openfile(NULL, flags, growable, opts);
     } else {
+        QDECREF(opts);
         return qemuio_command_usage(&open_cmd);
     }
 }
@@ -425,7 +433,7 @@ int main(int argc, char **argv)
             }
             break;
         case 'T':
-            if (!trace_backend_init(optarg, NULL)) {
+            if (!trace_init_backends(optarg, NULL)) {
                 exit(1); /* error message will have been printed */
             }
             break;