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>

4 files changed, 12 insertions, 15 deletions

diff --git a/hw/acpi/core.c b/hw/acpi/core.c
index 45cbed49ab..f6d9ec4f13 100644
--- a/hw/acpi/core.c
+++ b/hw/acpi/core.c
@@ -239,7 +239,6 @@ static void acpi_table_install(const char unsigned *blob, size_t bloblen,
 void acpi_table_add(const QemuOpts *opts, Error **errp)
 {
     AcpiTableOptions *hdrs = NULL;
-    Error *err = NULL;
     char **pathnames = NULL;
     char **cur;
     size_t bloblen = 0;
@@ -249,21 +248,21 @@ void acpi_table_add(const QemuOpts *opts, Error **errp)
         Visitor *v;
 
         v = opts_visitor_new(opts);
-        visit_type_AcpiTableOptions(v, NULL, &hdrs, &err);
+        visit_type_AcpiTableOptions(v, NULL, &hdrs, errp);
         visit_free(v);
     }
 
-    if (err) {
+    if (!hdrs) {
         goto out;
     }
     if (hdrs->has_file == hdrs->has_data) {
-        error_setg(&err, "'-acpitable' requires one of 'data' or 'file'");
+        error_setg(errp, "'-acpitable' requires one of 'data' or 'file'");
         goto out;
     }
 
     pathnames = g_strsplit(hdrs->has_file ? hdrs->file : hdrs->data, ":", 0);
     if (pathnames == NULL || pathnames[0] == NULL) {
-        error_setg(&err, "'-acpitable' requires at least one pathname");
+        error_setg(errp, "'-acpitable' requires at least one pathname");
         goto out;
     }
 
@@ -272,7 +271,7 @@ void acpi_table_add(const QemuOpts *opts, Error **errp)
         int fd = open(*cur, O_RDONLY | O_BINARY);
 
         if (fd < 0) {
-            error_setg(&err, "can't open file %s: %s", *cur, strerror(errno));
+            error_setg(errp, "can't open file %s: %s", *cur, strerror(errno));
             goto out;
         }
 
@@ -288,8 +287,8 @@ void acpi_table_add(const QemuOpts *opts, Error **errp)
                 memcpy(blob + bloblen, data, r);
                 bloblen += r;
             } else if (errno != EINTR) {
-                error_setg(&err, "can't read file %s: %s",
-                           *cur, strerror(errno));
+                error_setg(errp, "can't read file %s: %s", *cur,
+                           strerror(errno));
                 close(fd);
                 goto out;
             }
@@ -298,14 +297,12 @@ void acpi_table_add(const QemuOpts *opts, Error **errp)
         close(fd);
     }
 
-    acpi_table_install(blob, bloblen, hdrs->has_file, hdrs, &err);
+    acpi_table_install(blob, bloblen, hdrs->has_file, hdrs, errp);
 
 out:
     g_free(blob);
     g_strfreev(pathnames);
     qapi_free_AcpiTableOptions(hdrs);
-
-    error_propagate(errp, err);
 }
 
 unsigned acpi_table_len(void *current)
diff --git a/hw/acpi/cpu_hotplug.c b/hw/acpi/cpu_hotplug.c
index 3e687d227a..53654f8638 100644
--- a/hw/acpi/cpu_hotplug.c
+++ b/hw/acpi/cpu_hotplug.c
@@ -41,7 +41,7 @@ static void cpu_status_write(void *opaque, hwaddr addr, uint64_t data,
      */
     if (addr == 0 && data == 0) {
         AcpiCpuHotplug *cpus = opaque;
-        object_property_set_bool(cpus->device, false, "cpu-hotplug-legacy",
+        object_property_set_bool(cpus->device, "cpu-hotplug-legacy", false,
                                  &error_abort);
     }
 }
@@ -63,7 +63,7 @@ static void acpi_set_cpu_present_bit(AcpiCpuHotplug *g, CPUState *cpu)
 
     cpu_id = k->get_arch_id(cpu);
     if ((cpu_id / 8) >= ACPI_GPE_PROC_LEN) {
-        object_property_set_bool(g->device, false, "cpu-hotplug-legacy",
+        object_property_set_bool(g->device, "cpu-hotplug-legacy", false,
                                  &error_abort);
         return;
     }
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 2d204babc6..6a19070cec 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -201,7 +201,7 @@ static int vmstate_cpuhp_pre_load(void *opaque)
 {
     ICH9LPCPMRegs *s = opaque;
     Object *obj = OBJECT(s->gpe_cpu.device);
-    object_property_set_bool(obj, false, "cpu-hotplug-legacy", &error_abort);
+    object_property_set_bool(obj, "cpu-hotplug-legacy", false, &error_abort);
     return 0;
 }
 
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 283422e0d3..26bac4f16c 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -244,7 +244,7 @@ static bool vmstate_test_use_cpuhp(void *opaque)
 static int vmstate_cpuhp_pre_load(void *opaque)
 {
     Object *obj = OBJECT(opaque);
-    object_property_set_bool(obj, false, "cpu-hotplug-legacy", &error_abort);
+    object_property_set_bool(obj, "cpu-hotplug-legacy", false, &error_abort);
     return 0;
 }