Mechanical change using the following coccinelle script:

@@
expression mr, owner, arg3, arg4, errp;
@@
-   memory_region_init_ram(mr, owner, arg3, arg4, &errp);
    if (
-       errp
+       !memory_region_init_ram(mr, owner, arg3, arg4, &errp)
    ) {
        ...
        return;
    }

and removing the local Error variable.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/arm/aspeed_ast2400.c | 6 ++----
 hw/arm/aspeed_ast2600.c | 6 ++----
 hw/arm/fsl-imx25.c      | 6 ++----
 hw/arm/fsl-imx31.c      | 6 ++----
 hw/arm/fsl-imx6.c       | 6 ++----
 hw/arm/integratorcp.c   | 7 ++-----
 hw/arm/nrf51_soc.c      | 7 ++-----
 hw/ppc/rs6000_mc.c      | 7 ++-----
 8 files changed, 16 insertions(+), 35 deletions(-)

diff --git a/hw/arm/aspeed_ast2400.c b/hw/arm/aspeed_ast2400.c
index a4334c81b8..0baa2ff96e 100644
--- a/hw/arm/aspeed_ast2400.c
+++ b/hw/arm/aspeed_ast2400.c
@@ -247,7 +247,6 @@ static void aspeed_ast2400_soc_realize(DeviceState *dev, Error **errp)
     Aspeed2400SoCState *a = ASPEED2400_SOC(dev);
     AspeedSoCState *s = ASPEED_SOC(dev);
     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
-    Error *err = NULL;
     g_autofree char *sram_name = NULL;
 
     /* Default boot region (SPI memory or ROMs) */
@@ -276,9 +275,8 @@ static void aspeed_ast2400_soc_realize(DeviceState *dev, Error **errp)
 
     /* SRAM */
     sram_name = g_strdup_printf("aspeed.sram.%d", CPU(&a->cpu[0])->cpu_index);
-    memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size, &err);
-    if (err) {
-        error_propagate(errp, err);
+    if (!memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size,
+                                errp)) {
         return;
     }
     memory_region_add_subregion(s->memory,
diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c
index b965fbab5e..3a9a303ab8 100644
--- a/hw/arm/aspeed_ast2600.c
+++ b/hw/arm/aspeed_ast2600.c
@@ -282,7 +282,6 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
     Aspeed2600SoCState *a = ASPEED2600_SOC(dev);
     AspeedSoCState *s = ASPEED_SOC(dev);
     AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
-    Error *err = NULL;
     qemu_irq irq;
     g_autofree char *sram_name = NULL;
 
@@ -355,9 +354,8 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
 
     /* SRAM */
     sram_name = g_strdup_printf("aspeed.sram.%d", CPU(&a->cpu[0])->cpu_index);
-    memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size, &err);
-    if (err) {
-        error_propagate(errp, err);
+    if (!memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size,
+                                errp)) {
         return;
     }
     memory_region_add_subregion(s->memory,
diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
index 9aabbf7f58..b15435ccaf 100644
--- a/hw/arm/fsl-imx25.c
+++ b/hw/arm/fsl-imx25.c
@@ -299,10 +299,8 @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
                                 &s->rom[1]);
 
     /* initialize internal RAM (128 KB) */
-    memory_region_init_ram(&s->iram, NULL, "imx25.iram", FSL_IMX25_IRAM_SIZE,
-                           &err);
-    if (err) {
-        error_propagate(errp, err);
+    if (!memory_region_init_ram(&s->iram, NULL, "imx25.iram",
+                                FSL_IMX25_IRAM_SIZE, errp)) {
         return;
     }
     memory_region_add_subregion(get_system_memory(), FSL_IMX25_IRAM_ADDR,
diff --git a/hw/arm/fsl-imx31.c b/hw/arm/fsl-imx31.c
index def27bb913..1d5dcd51e8 100644
--- a/hw/arm/fsl-imx31.c
+++ b/hw/arm/fsl-imx31.c
@@ -208,10 +208,8 @@ static void fsl_imx31_realize(DeviceState *dev, Error **errp)
                                 &s->rom);
 
     /* initialize internal RAM (16 KB) */
-    memory_region_init_ram(&s->iram, NULL, "imx31.iram", FSL_IMX31_IRAM_SIZE,
-                           &err);
-    if (err) {
-        error_propagate(errp, err);
+    if (!memory_region_init_ram(&s->iram, NULL, "imx31.iram",
+                                FSL_IMX31_IRAM_SIZE, errp)) {
         return;
     }
     memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ADDR,
diff --git a/hw/arm/fsl-imx6.c b/hw/arm/fsl-imx6.c
index 7dc42cbfe6..58f37e7c11 100644
--- a/hw/arm/fsl-imx6.c
+++ b/hw/arm/fsl-imx6.c
@@ -443,10 +443,8 @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp)
                                 &s->caam);
 
     /* OCRAM memory */
-    memory_region_init_ram(&s->ocram, NULL, "imx6.ocram", FSL_IMX6_OCRAM_SIZE,
-                           &err);
-    if (err) {
-        error_propagate(errp, err);
+    if (!memory_region_init_ram(&s->ocram, NULL, "imx6.ocram",
+                                FSL_IMX6_OCRAM_SIZE, errp)) {
         return;
     }
     memory_region_add_subregion(get_system_memory(), FSL_IMX6_OCRAM_ADDR,
diff --git a/hw/arm/integratorcp.c b/hw/arm/integratorcp.c
index d176e9af7e..bb722fd46f 100644
--- a/hw/arm/integratorcp.c
+++ b/hw/arm/integratorcp.c
@@ -291,12 +291,9 @@ static void integratorcm_realize(DeviceState *d, Error **errp)
 {
     IntegratorCMState *s = INTEGRATOR_CM(d);
     SysBusDevice *dev = SYS_BUS_DEVICE(d);
-    Error *local_err = NULL;
 
-    memory_region_init_ram(&s->flash, OBJECT(d), "integrator.flash", 0x100000,
-                           &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
+    if (!memory_region_init_ram(&s->flash, OBJECT(d), "integrator.flash",
+                                0x100000, errp)) {
         return;
     }
 
diff --git a/hw/arm/nrf51_soc.c b/hw/arm/nrf51_soc.c
index 34da0d62f0..ac53441630 100644
--- a/hw/arm/nrf51_soc.c
+++ b/hw/arm/nrf51_soc.c
@@ -58,7 +58,6 @@ static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp)
 {
     NRF51State *s = NRF51_SOC(dev_soc);
     MemoryRegion *mr;
-    Error *err = NULL;
     uint8_t i = 0;
     hwaddr base_addr = 0;
 
@@ -92,10 +91,8 @@ static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp)
 
     memory_region_add_subregion_overlap(&s->container, 0, s->board_memory, -1);
 
-    memory_region_init_ram(&s->sram, OBJECT(s), "nrf51.sram", s->sram_size,
-                           &err);
-    if (err) {
-        error_propagate(errp, err);
+    if (!memory_region_init_ram(&s->sram, OBJECT(s), "nrf51.sram", s->sram_size,
+                                errp)) {
         return;
     }
     memory_region_add_subregion(&s->container, NRF51_SRAM_BASE, &s->sram);
diff --git a/hw/ppc/rs6000_mc.c b/hw/ppc/rs6000_mc.c
index c0bc212e92..0bf9cb9c47 100644
--- a/hw/ppc/rs6000_mc.c
+++ b/hw/ppc/rs6000_mc.c
@@ -143,7 +143,6 @@ static void rs6000mc_realize(DeviceState *dev, Error **errp)
     RS6000MCState *s = RS6000MC(dev);
     int socket = 0;
     unsigned int ram_size = s->ram_size / MiB;
-    Error *local_err = NULL;
 
     while (socket < 6) {
         if (ram_size >= 64) {
@@ -165,10 +164,8 @@ static void rs6000mc_realize(DeviceState *dev, Error **errp)
         if (s->simm_size[socket]) {
             char name[] = "simm.?";
             name[5] = socket + '0';
-            memory_region_init_ram(&s->simm[socket], OBJECT(dev), name,
-                                   s->simm_size[socket] * MiB, &local_err);
-            if (local_err) {
-                error_propagate(errp, local_err);
+            if (!memory_region_init_ram(&s->simm[socket], OBJECT(dev), name,
+                                        s->simm_size[socket] * MiB, errp)) {
                 return;
             }
             memory_region_add_subregion_overlap(get_system_memory(), 0,
-- 
2.41.0

On 11/21/23 07:32, Philippe Mathieu-Daudé wrote:
> Mechanical change using the following coccinelle script:
> 
> @@
> expression mr, owner, arg3, arg4, errp;
> @@
> -   memory_region_init_ram(mr, owner, arg3, arg4, &errp);
>      if (
> -       errp
> +       !memory_region_init_ram(mr, owner, arg3, arg4, &errp)
>      ) {
>          ...
>          return;
>      }
> 
> and removing the local Error variable.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   hw/arm/aspeed_ast2400.c | 6 ++----
>   hw/arm/aspeed_ast2600.c | 6 ++----
>   hw/arm/fsl-imx25.c      | 6 ++----
>   hw/arm/fsl-imx31.c      | 6 ++----
>   hw/arm/fsl-imx6.c       | 6 ++----
>   hw/arm/integratorcp.c   | 7 ++-----
>   hw/arm/nrf51_soc.c      | 7 ++-----
>   hw/ppc/rs6000_mc.c      | 7 ++-----
>   8 files changed, 16 insertions(+), 35 deletions(-)
> 

Reviewed-by: Gavin Shan <gshan@redhat.com>

On Mon, 2023-11-20 at 22:32 +0100, Philippe Mathieu-Daudé wrote:
> Mechanical change using the following coccinelle script:
> 
> @@
> expression mr, owner, arg3, arg4, errp;
> @@
> -   memory_region_init_ram(mr, owner, arg3, arg4, &errp);
>     if (
> -       errp
> +       !memory_region_init_ram(mr, owner, arg3, arg4, &errp)
>     ) {
>         ...
>         return;
>     }
> 
> and removing the local Error variable.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>  hw/arm/aspeed_ast2400.c | 6 ++----
>  hw/arm/aspeed_ast2600.c | 6 ++----

For my own benefit it looks like the motivating thread for this series
is: 

https://lore.kernel.org/qemu-devel/936e1ac4-cef8-08b4-c688-e5b1e057208b@linaro.org/

Anyway,

Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au> # aspeed

On Mon, 20 Nov 2023 23:32, Philippe Mathieu-Daudé <philmd@linaro.org> wrote:
>Mechanical change using the following coccinelle script:
>
>@@
>expression mr, owner, arg3, arg4, errp;
>@@
>-   memory_region_init_ram(mr, owner, arg3, arg4, &errp);
>    if (
>-       errp
>+       !memory_region_init_ram(mr, owner, arg3, arg4, &errp)
>    ) {
>        ...
>        return;
>    }
>
>and removing the local Error variable.
>
>Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
>---

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>