diff --git a/hw/display/jazz_led.c b/hw/display/jazz_led.c
index 3e0112b..1d84559 100644
--- a/hw/display/jazz_led.c
+++ b/hw/display/jazz_led.c
@@ -90,25 +90,25 @@ static void draw_horizontal_line(DisplaySurface *ds,
 
     bpp = (surface_bits_per_pixel(ds) + 7) >> 3;
     d = surface_data(ds) + surface_stride(ds) * posy + bpp * posx1;
-    switch(bpp) {
-        case 1:
-            for (x = posx1; x <= posx2; x++) {
-                *((uint8_t *)d) = color;
-                d++;
-            }
-            break;
-        case 2:
-            for (x = posx1; x <= posx2; x++) {
-                *((uint16_t *)d) = color;
-                d += 2;
-            }
-            break;
-        case 4:
-            for (x = posx1; x <= posx2; x++) {
-                *((uint32_t *)d) = color;
-                d += 4;
-            }
-            break;
+    switch (bpp) {
+    case 1:
+        for (x = posx1; x <= posx2; x++) {
+            *((uint8_t *)d) = color;
+            d++;
+        }
+        break;
+    case 2:
+        for (x = posx1; x <= posx2; x++) {
+            *((uint16_t *)d) = color;
+            d += 2;
+        }
+        break;
+    case 4:
+        for (x = posx1; x <= posx2; x++) {
+            *((uint32_t *)d) = color;
+            d += 4;
+        }
+        break;
     }
 }
 
@@ -121,25 +121,25 @@ static void draw_vertical_line(DisplaySurface *ds,
 
     bpp = (surface_bits_per_pixel(ds) + 7) >> 3;
     d = surface_data(ds) + surface_stride(ds) * posy1 + bpp * posx;
-    switch(bpp) {
-        case 1:
-            for (y = posy1; y <= posy2; y++) {
-                *((uint8_t *)d) = color;
-                d += surface_stride(ds);
-            }
-            break;
-        case 2:
-            for (y = posy1; y <= posy2; y++) {
-                *((uint16_t *)d) = color;
-                d += surface_stride(ds);
-            }
-            break;
-        case 4:
-            for (y = posy1; y <= posy2; y++) {
-                *((uint32_t *)d) = color;
-                d += surface_stride(ds);
-            }
-            break;
+    switch (bpp) {
+    case 1:
+        for (y = posy1; y <= posy2; y++) {
+            *((uint8_t *)d) = color;
+            d += surface_stride(ds);
+        }
+        break;
+    case 2:
+        for (y = posy1; y <= posy2; y++) {
+            *((uint16_t *)d) = color;
+            d += surface_stride(ds);
+        }
+        break;
+    case 4:
+        for (y = posy1; y <= posy2; y++) {
+            *((uint32_t *)d) = color;
+            d += surface_stride(ds);
+        }
+        break;
     }
 }
 
@@ -164,28 +164,28 @@ static void jazz_led_update_display(void *opaque)
     if (s->state & REDRAW_SEGMENTS) {
         /* set colors according to bpp */
         switch (surface_bits_per_pixel(surface)) {
-            case 8:
-                color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
-                color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
-                break;
-            case 15:
-                color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
-                color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
-                break;
-            case 16:
-                color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
-                color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
-                break;
-            case 24:
-                color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
-                color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
-                break;
-            case 32:
-                color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
-                color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
-                break;
-            default:
-                return;
+        case 8:
+            color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
+            color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
+            break;
+        case 15:
+            color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
+            color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
+            break;
+        case 16:
+            color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
+            color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
+            break;
+        case 24:
+            color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
+            color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
+            break;
+        case 32:
+            color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
+            color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
+            break;
+        default:
+            return;
         }
 
         /* display segments */
@@ -205,8 +205,9 @@ static void jazz_led_update_display(void *opaque)
                              (s->segments & 0x80) ? color_segment : 0);
 
         /* display led */
-        if (!(s->segments & 0x01))
+        if (!(s->segments & 0x01)) {
             color_led = 0; /* black */
+        }
         draw_horizontal_line(surface, 68, 50, 50, color_led);
         draw_horizontal_line(surface, 69, 49, 51, color_led);
         draw_horizontal_line(surface, 70, 48, 52, color_led);
diff --git a/hw/dma/rc4030.c b/hw/dma/rc4030.c
index d54e296..c4cf823 100644
--- a/hw/dma/rc4030.c
+++ b/hw/dma/rc4030.c
@@ -397,10 +397,11 @@ static void update_jazz_irq(rc4030State *s)
 
     pending = s->isr_jazz & s->imr_jazz;
 
-    if (pending != 0)
+    if (pending != 0) {
         qemu_irq_raise(s->jazz_bus_irq);
-    else
+    } else {
         qemu_irq_lower(s->jazz_bus_irq);
+    }
 }
 
 static void rc4030_irq_jazz_request(void *opaque, int irq, int level)
@@ -588,7 +589,8 @@ static const VMStateDescription vmstate_rc4030 = {
     }
 };
 
-static void rc4030_do_dma(void *opaque, int n, uint8_t *buf, int len, int is_write)
+static void rc4030_do_dma(void *opaque, int n, uint8_t *buf,
+                          int len, int is_write)
 {
     rc4030State *s = opaque;
     hwaddr dma_addr;
@@ -643,8 +645,8 @@ static rc4030_dma *rc4030_allocate_dmas(void *opaque, int n)
     struct rc4030DMAState *p;
     int i;
 
-    s = (rc4030_dma *)g_malloc0(sizeof(rc4030_dma) * n);
-    p = (struct rc4030DMAState *)g_malloc0(sizeof(struct rc4030DMAState) * n);
+    s = (rc4030_dma *)g_new0(rc4030_dma, n);
+    p = (struct rc4030DMAState *)g_new0(struct rc4030DMAState, n);
     for (i = 0; i < n; i++) {
         p->opaque = opaque;
         p->n = i;
diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
index d978bb6..ac4d7ac 100644
--- a/hw/mips/mips_jazz.c
+++ b/hw/mips/mips_jazz.c
@@ -52,8 +52,7 @@
 #include "qemu/error-report.h"
 #include "qemu/help_option.h"
 
-enum jazz_model_e
-{
+enum jazz_model_e {
     JAZZ_MAGNUM,
     JAZZ_PICA61,
 };
@@ -90,16 +89,20 @@ static const MemoryRegionOps rtc_ops = {
 static uint64_t dma_dummy_read(void *opaque, hwaddr addr,
                                unsigned size)
 {
-    /* Nothing to do. That is only to ensure that
-     * the current DMA acknowledge cycle is completed. */
+    /*
+     * Nothing to do. That is only to ensure that
+     * the current DMA acknowledge cycle is completed.
+     */
     return 0xff;
 }
 
 static void dma_dummy_write(void *opaque, hwaddr addr,
                             uint64_t val, unsigned size)
 {
-    /* Nothing to do. That is only to ensure that
-     * the current DMA acknowledge cycle is completed. */
+    /*
+     * Nothing to do. That is only to ensure that
+     * the current DMA acknowledge cycle is completed.
+     */
 }
 
 static const MemoryRegionOps dma_dummy_ops = {
@@ -109,8 +112,8 @@ static const MemoryRegionOps dma_dummy_ops = {
 };
 
 #define MAGNUM_BIOS_SIZE_MAX 0x7e000
-#define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
-
+#define MAGNUM_BIOS_SIZE                                                       \
+        (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
 static void (*real_do_transaction_failed)(CPUState *cpu, hwaddr physaddr,
                                           vaddr addr, unsigned size,
                                           MMUAccessType access_type,
@@ -201,8 +204,9 @@ static void mips_jazz_init(MachineState *machine,
     memory_region_add_subregion(address_space, 0xfff00000LL, bios2);
 
     /* load the BIOS image. */
-    if (bios_name == NULL)
+    if (bios_name == NULL) {
         bios_name = BIOS_FILENAME;
+    }
     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
     if (filename) {
         bios_size = load_image_targphys(filename, 0xfff00000LL,
@@ -229,7 +233,8 @@ static void mips_jazz_init(MachineState *machine,
                                 sysbus_mmio_get_region(sysbus, 0));
     memory_region_add_subregion(address_space, 0xf0000000,
                                 sysbus_mmio_get_region(sysbus, 1));
-    memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops, NULL, "dummy_dma", 0x1000);
+    memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops,
+                          NULL, "dummy_dma", 0x1000);
     memory_region_add_subregion(address_space, 0x8000d000, dma_dummy);
 
     /* ISA bus: IO space at 0x90000000, mem space at 0x91000000 */
@@ -276,8 +281,9 @@ static void mips_jazz_init(MachineState *machine,
     /* Network controller */
     for (n = 0; n < nb_nics; n++) {
         nd = &nd_table[n];
-        if (!nd->model)
+        if (!nd->model) {
             nd->model = g_strdup("dp83932");
+        }
         if (strcmp(nd->model, "dp83932") == 0) {
             qemu_check_nic_model(nd, "dp83932");
 
@@ -338,12 +344,12 @@ static void mips_jazz_init(MachineState *machine,
     /* Serial ports */
     if (serial_hd(0)) {
         serial_mm_init(address_space, 0x80006000, 0,
-                       qdev_get_gpio_in(rc4030, 8), 8000000/16,
+                       qdev_get_gpio_in(rc4030, 8), 8000000 / 16,
                        serial_hd(0), DEVICE_NATIVE_ENDIAN);
     }
     if (serial_hd(1)) {
         serial_mm_init(address_space, 0x80007000, 0,
-                       qdev_get_gpio_in(rc4030, 9), 8000000/16,
+                       qdev_get_gpio_in(rc4030, 9), 8000000 / 16,
                        serial_hd(1), DEVICE_NATIVE_ENDIAN);
     }
 
