diff --git a/block.c b/block.c
index 1c3ebd7..0bae046 100644
--- a/block.c
+++ b/block.c
@@ -1387,7 +1387,7 @@
 }
 
 void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
-                               BlockErrorAction action, int is_read)
+                               BlockErrorAction action, bool is_read)
 {
     QObject *data;
     const char *action_str;
@@ -2481,7 +2481,7 @@
     bs->on_write_error = on_write_error;
 }
 
-BlockdevOnError bdrv_get_on_error(BlockDriverState *bs, int is_read)
+BlockdevOnError bdrv_get_on_error(BlockDriverState *bs, bool is_read)
 {
     return is_read ? bs->on_read_error : bs->on_write_error;
 }
diff --git a/block.h b/block.h
index ee81129..47dd905 100644
--- a/block.h
+++ b/block.h
@@ -109,7 +109,7 @@
 bool bdrv_iostatus_is_enabled(const BlockDriverState *bs);
 void bdrv_iostatus_set_err(BlockDriverState *bs, int error);
 void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
-                               BlockErrorAction action, int is_read);
+                               BlockErrorAction action, bool is_read);
 void bdrv_info_print(Monitor *mon, const QObject *data);
 void bdrv_info(Monitor *mon, QObject **ret_data);
 void bdrv_stats_print(Monitor *mon, const QObject *data);
@@ -281,7 +281,7 @@
 
 void bdrv_set_on_error(BlockDriverState *bs, BlockdevOnError on_read_error,
                        BlockdevOnError on_write_error);
-BlockdevOnError bdrv_get_on_error(BlockDriverState *bs, int is_read);
+BlockdevOnError bdrv_get_on_error(BlockDriverState *bs, bool is_read);
 int bdrv_is_read_only(BlockDriverState *bs);
 int bdrv_is_sg(BlockDriverState *bs);
 int bdrv_enable_write_cache(BlockDriverState *bs);
diff --git a/blockdev.c b/blockdev.c
index 6330715..d52a830 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -238,7 +238,7 @@
     qemu_bh_schedule(s->bh);
 }
 
-static int parse_block_error_action(const char *buf, int is_read)
+static int parse_block_error_action(const char *buf, bool is_read)
 {
     if (!strcmp(buf, "ignore")) {
         return BLOCKDEV_ON_ERROR_IGNORE;
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 2620e87..c03db4a 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -556,7 +556,7 @@
 
 static int ide_handle_rw_error(IDEState *s, int error, int op)
 {
-    int is_read = (op & BM_STATUS_RETRY_READ);
+    bool is_read = (op & BM_STATUS_RETRY_READ) != 0;
     BlockdevOnError action = bdrv_get_on_error(s->bs, is_read);
 
     if (action == BLOCKDEV_ON_ERROR_IGNORE) {
diff --git a/hw/ide/pci.c b/hw/ide/pci.c
index 88c0942..644533f 100644
--- a/hw/ide/pci.c
+++ b/hw/ide/pci.c
@@ -188,7 +188,7 @@
 {
     BMDMAState *bm = opaque;
     IDEBus *bus = bm->bus;
-    int is_read;
+    bool is_read;
     int error_status;
 
     qemu_bh_delete(bm->bh);
@@ -198,7 +198,7 @@
         return;
     }
 
-    is_read = !!(bus->error_status & BM_STATUS_RETRY_READ);
+    is_read = (bus->error_status & BM_STATUS_RETRY_READ) != 0;
 
     /* The error status must be cleared before resubmitting the request: The
      * request may fail again, and this case can only be distinguished if the
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index c295326..2dd99a9 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -386,7 +386,7 @@
  */
 static int scsi_handle_rw_error(SCSIDiskReq *r, int error)
 {
-    int is_read = (r->req.cmd.xfer == SCSI_XFER_FROM_DEV);
+    bool is_read = (r->req.cmd.xfer == SCSI_XFER_FROM_DEV);
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
     BlockdevOnError action = bdrv_get_on_error(s->qdev.conf.bs, is_read);
 
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index f178fa8..1ac2483 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -64,7 +64,7 @@
 }
 
 static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
-    int is_read)
+    bool is_read)
 {
     BlockdevOnError action = bdrv_get_on_error(req->dev->bs, is_read);
     VirtIOBlock *s = req->dev;
@@ -98,7 +98,7 @@
     trace_virtio_blk_rw_complete(req, ret);
 
     if (ret) {
-        int is_read = !(ldl_p(&req->out->type) & VIRTIO_BLK_T_OUT);
+        bool is_read = !(ldl_p(&req->out->type) & VIRTIO_BLK_T_OUT);
         if (virtio_blk_handle_rw_error(req, -ret, is_read))
             return;
     }