commit 9c878ad6fbfc7934c9c4f6ba607c0842202afdbb
author Philippe Mathieu-Daudé <philmd@linaro.org> Mon Nov 20 15:32:57 2023 +0100
committer Philippe Mathieu-Daudé <philmd@linaro.org> Fri Jan 05 16:20:15 2024 +0100
tree 21441e4eb19b3411e343cd84e17082842fe8c4c3
parent b622ee98bf784b093494a81c46667bd6e6324f1a

misc: Simplify qemu_prealloc_mem() calls

Since qemu_prealloc_mem() returns whether or not an error
occured, we don't need to check the @errp pointer. Remove
local_err uses when we can return directly.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Message-Id: <20231120213301.24349-20-philmd@linaro.org>

backends/hostmem.c

diff --git a/backends/hostmem.c b/backends/hostmem.c
index 1b0043a..30f69b2 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -219,7 +219,6 @@
 static void host_memory_backend_set_prealloc(Object *obj, bool value,
                                              Error **errp)
 {
-    Error *local_err = NULL;
     HostMemoryBackend *backend = MEMORY_BACKEND(obj);
 
     if (!backend->reserve && value) {
@@ -237,10 +236,8 @@
         void *ptr = memory_region_get_ram_ptr(&backend->mr);
         uint64_t sz = memory_region_size(&backend->mr);
 
-        qemu_prealloc_mem(fd, ptr, sz, backend->prealloc_threads,
-                          backend->prealloc_context, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
+        if (!qemu_prealloc_mem(fd, ptr, sz, backend->prealloc_threads,
+                               backend->prealloc_context, errp)) {
             return;
         }
         backend->prealloc = true;
@@ -398,16 +395,11 @@
      * This is necessary to guarantee memory is allocated with
      * specified NUMA policy in place.
      */
-    if (backend->prealloc) {
-        Error *local_err = NULL;
-
-        qemu_prealloc_mem(memory_region_get_fd(&backend->mr), ptr, sz,
-                          backend->prealloc_threads,
-                          backend->prealloc_context, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
+    if (backend->prealloc && !qemu_prealloc_mem(memory_region_get_fd(&backend->mr),
+                                                ptr, sz,
+                                                backend->prealloc_threads,
+                                                backend->prealloc_context, errp)) {
+        return;
     }
 }
 

hw/virtio/virtio-mem.c

diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
index dc47097..99ab989 100644
--- a/hw/virtio/virtio-mem.c
+++ b/hw/virtio/virtio-mem.c
@@ -605,8 +605,7 @@
         int fd = memory_region_get_fd(&vmem->memdev->mr);
         Error *local_err = NULL;
 
-        qemu_prealloc_mem(fd, area, size, 1, NULL, &local_err);
-        if (local_err) {
+        if (!qemu_prealloc_mem(fd, area, size, 1, NULL, &local_err)) {
             static bool warned;
 
             /*
@@ -1249,8 +1248,7 @@
     int fd = memory_region_get_fd(&vmem->memdev->mr);
     Error *local_err = NULL;
 
-    qemu_prealloc_mem(fd, area, size, 1, NULL, &local_err);
-    if (local_err) {
+    if (!qemu_prealloc_mem(fd, area, size, 1, NULL, &local_err)) {
         error_report_err(local_err);
         return -ENOMEM;
     }