hw: Remove superfluous breaks

diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index 8ab1d66..f0fcd63 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -213,7 +213,6 @@  static uint32_t pflash_devid_query(PFlashCFI01 *pfl, hwaddr offset)
     default:
         trace_pflash_device_info(offset);
         return 0;
-        break;
     }
     /* Replicate responses for each device in bank. */
     if (pfl->device_width < pfl->bank_width) {
diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c
index 212d6f5..02d9ed0 100644
--- a/hw/display/cirrus_vga.c
+++ b/hw/display/cirrus_vga.c
@@ -1637,7 +1637,6 @@  static int cirrus_vga_read_cr(CirrusVGAState * s, unsigned reg_index)
 	return s->vga.cr[s->vga.cr_index];
     case 0x26:			// Attribute Controller Index Readback (R)
 	return s->vga.ar_index & 0x3f;
-	break;
     default:
         qemu_log_mask(LOG_GUEST_ERROR,
                       "cirrus: inport cr_index 0x%02x\n", reg_index);
diff --git a/hw/display/qxl-logger.c b/hw/display/qxl-logger.c
index 2ec6d8f..c15175b 100644
--- a/hw/display/qxl-logger.c
+++ b/hw/display/qxl-logger.c
@@ -161,7 +161,6 @@  static int qxl_log_cmd_draw(PCIQXLDevice *qxl, QXLDrawable *draw, int group_id)
     switch (draw->type) {
     case QXL_DRAW_COPY:
         return qxl_log_cmd_draw_copy(qxl, &draw->u.copy, group_id);
-        break;
     }
     return 0;
 }
@@ -180,7 +179,6 @@  static int qxl_log_cmd_draw_compat(PCIQXLDevice *qxl, QXLCompatDrawable *draw,
     switch (draw->type) {
     case QXL_DRAW_COPY:
         return qxl_log_cmd_draw_copy(qxl, &draw->u.copy, group_id);
-        break;
     }
     return 0;
 }
diff --git a/hw/gpio/max7310.c b/hw/gpio/max7310.c
index bebb403..4f78774 100644
--- a/hw/gpio/max7310.c
+++ b/hw/gpio/max7310.c
@@ -51,11 +51,9 @@  static uint8_t max7310_rx(I2CSlave *i2c)
     switch (s->command) {
     case 0x00:	/* Input port */
         return s->level ^ s->polarity;
-        break;
 
     case 0x01:	/* Output port */
         return s->level & ~s->direction;
-        break;
 
     case 0x02:	/* Polarity inversion */
         return s->polarity;
@@ -65,7 +63,6 @@  static uint8_t max7310_rx(I2CSlave *i2c)
 
     case 0x04:	/* Timeout */
         return s->status;
-        break;
 
     case 0xff:	/* Reserved */
         return 0xff;
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index c56398e..7b390ca 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -3163,7 +3163,6 @@  static int vtd_irte_get(IntelIOMMUState *iommu, uint16_t index,
                               index, entry->irte.sid_vtype);
             /* Take this as verification failure. */
             return -VTD_FR_IR_SID_ERR;
-            break;
         }
     }
 
diff --git a/hw/input/pxa2xx_keypad.c b/hw/input/pxa2xx_keypad.c
index 62aa6f6..7f2f739 100644
--- a/hw/input/pxa2xx_keypad.c
+++ b/hw/input/pxa2xx_keypad.c
@@ -192,10 +192,8 @@  static uint64_t pxa2xx_keypad_read(void *opaque, hwaddr offset,
             s->kpc &= ~(KPC_DI);
         qemu_irq_lower(s->irq);
         return tmp;
-        break;
     case KPDK:
         return s->kpdk;
-        break;
     case KPREC:
         tmp = s->kprec;
         if(tmp & KPREC_OF1)
@@ -207,31 +205,23 @@  static uint64_t pxa2xx_keypad_read(void *opaque, hwaddr offset,
         if(tmp & KPREC_UF0)
             s->kprec &= ~(KPREC_UF0);
         return tmp;
-        break;
     case KPMK:
         tmp = s->kpmk;
         if(tmp & KPMK_MKP)
             s->kpmk &= ~(KPMK_MKP);
         return tmp;
-        break;
     case KPAS:
         return s->kpas;
-        break;
     case KPASMKP0:
         return s->kpasmkp[0];
-        break;
     case KPASMKP1:
         return s->kpasmkp[1];
-        break;
     case KPASMKP2:
         return s->kpasmkp[2];
-        break;
     case KPASMKP3:
         return s->kpasmkp[3];
-        break;
     case KPKDI:
         return s->kpkdi;
-        break;
     default:
         qemu_log_mask(LOG_GUEST_ERROR,
                       "%s: Bad read offset 0x%"HWADDR_PRIx"\n",
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 3c4b6e6..720ac97 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -1275,7 +1275,6 @@  static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
     case 0xd90: /* MPU_TYPE */
         /* Unified MPU; if the MPU is not present this value is zero */
         return cpu->pmsav7_dregion << 8;
-        break;
     case 0xd94: /* MPU_CTRL */
         return cpu->env.v7m.mpu_ctrl[attrs.secure];
     case 0xd98: /* MPU_RNR */
diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c
index 8e2a432..e35f00f 100644
--- a/hw/net/lan9118.c
+++ b/hw/net/lan9118.c
@@ -931,10 +931,8 @@  static uint32_t do_mac_read(lan9118_state *s, int reg)
                | (s->conf.macaddr.a[2] << 16) | (s->conf.macaddr.a[3] << 24);
     case MAC_HASHH:
         return s->mac_hashh;
-        break;
     case MAC_HASHL:
         return s->mac_hashl;
-        break;
     case MAC_MII_ACC:
         return s->mac_mii_acc;
     case MAC_MII_DATA:
diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c
index 7d6105e..0f1afd6 100644
--- a/hw/usb/ccid-card-emulated.c
+++ b/hw/usb/ccid-card-emulated.c
@@ -350,7 +350,6 @@  static void *event_thread(void *arg)
         case VEVENT_LAST: /* quit */
             vevent_delete(event);
             return NULL;
-            break;
         default:
             break;
         }