Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2020-07-07-v2' into staging

Error reporting patches patches for 2020-07-07

# gpg: Signature made Fri 10 Jul 2020 14:24:42 BST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-error-2020-07-07-v2: (53 commits)
  xen: Use ERRP_GUARD()
  nbd: Use ERRP_GUARD()
  virtio-9p: Use ERRP_GUARD()
  fw_cfg: Use ERRP_GUARD()
  pflash: Use ERRP_GUARD()
  sd: Use ERRP_GUARD()
  scripts: Coccinelle script to use ERRP_GUARD()
  error: New macro ERRP_GUARD()
  hmp: Ignore Error objects where the return value suffices
  qdev: Ignore Error objects where the return value suffices
  qemu-img: Ignore Error objects where the return value suffices
  error: Avoid error_propagate() after migrate_add_blocker()
  qapi: Purge error_propagate() from QAPI core
  qapi: Smooth visitor error checking in generated code
  qapi: Smooth another visitor error checking pattern
  block/parallels: Simplify parallels_open() after previous commit
  error: Reduce unnecessary error propagation
  error: Eliminate error_propagate() manually
  error: Eliminate error_propagate() with Coccinelle, part 2
  error: Eliminate error_propagate() with Coccinelle, part 1
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 8 insertions, 17 deletions

diff --git a/util/qemu-config.c b/util/qemu-config.c
index 772f5a219e..660f47b005 100644
--- a/util/qemu-config.c
+++ b/util/qemu-config.c
@@ -339,8 +339,7 @@ int qemu_set_option(const char *str)
         return -1;
     }
 
-    qemu_opt_set(opts, arg, str + offset + 1, &local_err);
-    if (local_err) {
+    if (!qemu_opt_set(opts, arg, str + offset + 1, &local_err)) {
         error_report_err(local_err);
         return -1;
     }
@@ -441,8 +440,7 @@ int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
                 error_report("no group defined");
                 goto out;
             }
-            qemu_opt_set(opts, arg, value, &local_err);
-            if (local_err) {
+            if (!qemu_opt_set(opts, arg, value, &local_err)) {
                 error_report_err(local_err);
                 goto out;
             }
@@ -481,7 +479,6 @@ static void config_parse_qdict_section(QDict *options, QemuOptsList *opts,
     QemuOpts *subopts;
     QDict *subqdict;
     QList *list = NULL;
-    Error *local_err = NULL;
     size_t orig_size, enum_size;
     char *prefix;
 
@@ -493,15 +490,12 @@ static void config_parse_qdict_section(QDict *options, QemuOptsList *opts,
         goto out;
     }
 
-    subopts = qemu_opts_create(opts, NULL, 0, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
+    subopts = qemu_opts_create(opts, NULL, 0, errp);
+    if (!subopts) {
         goto out;
     }
 
-    qemu_opts_absorb_qdict(subopts, subqdict, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
+    if (!qemu_opts_absorb_qdict(subopts, subqdict, errp)) {
         goto out;
     }
 
@@ -538,16 +532,13 @@ static void config_parse_qdict_section(QDict *options, QemuOptsList *opts,
             }
 
             opt_name = g_strdup_printf("%s.%u", opts->name, i++);
-            subopts = qemu_opts_create(opts, opt_name, 1, &local_err);
+            subopts = qemu_opts_create(opts, opt_name, 1, errp);
             g_free(opt_name);
-            if (local_err) {
-                error_propagate(errp, local_err);
+            if (!subopts) {
                 goto out;
             }
 
-            qemu_opts_absorb_qdict(subopts, section, &local_err);
-            if (local_err) {
-                error_propagate(errp, local_err);
+            if (!qemu_opts_absorb_qdict(subopts, section, errp)) {
                 qemu_opts_del(subopts);
                 goto out;
             }