diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 36 |
1 files changed, 19 insertions, 17 deletions
@@ -691,6 +691,7 @@ int bdrv_pread(BlockDriverState *bs, int64_t offset, uint8_t tmp_buf[BDRV_SECTOR_SIZE]; int len, nb_sectors, count; int64_t sector_num; + int ret; count = count1; /* first read to align to sector start */ @@ -699,8 +700,8 @@ int bdrv_pread(BlockDriverState *bs, int64_t offset, len = count; sector_num = offset >> BDRV_SECTOR_BITS; if (len > 0) { - if (bdrv_read(bs, sector_num, tmp_buf, 1) < 0) - return -EIO; + if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0) + return ret; memcpy(buf, tmp_buf + (offset & (BDRV_SECTOR_SIZE - 1)), len); count -= len; if (count == 0) @@ -712,8 +713,8 @@ int bdrv_pread(BlockDriverState *bs, int64_t offset, /* read the sectors "in place" */ nb_sectors = count >> BDRV_SECTOR_BITS; if (nb_sectors > 0) { - if (bdrv_read(bs, sector_num, buf, nb_sectors) < 0) - return -EIO; + if ((ret = bdrv_read(bs, sector_num, buf, nb_sectors)) < 0) + return ret; sector_num += nb_sectors; len = nb_sectors << BDRV_SECTOR_BITS; buf += len; @@ -722,8 +723,8 @@ int bdrv_pread(BlockDriverState *bs, int64_t offset, /* add data from the last sector */ if (count > 0) { - if (bdrv_read(bs, sector_num, tmp_buf, 1) < 0) - return -EIO; + if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0) + return ret; memcpy(buf, tmp_buf, count); } return count1; @@ -735,6 +736,7 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset, uint8_t tmp_buf[BDRV_SECTOR_SIZE]; int len, nb_sectors, count; int64_t sector_num; + int ret; count = count1; /* first write to align to sector start */ @@ -743,11 +745,11 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset, len = count; sector_num = offset >> BDRV_SECTOR_BITS; if (len > 0) { - if (bdrv_read(bs, sector_num, tmp_buf, 1) < 0) - return -EIO; + if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0) + return ret; memcpy(tmp_buf + (offset & (BDRV_SECTOR_SIZE - 1)), buf, len); - if (bdrv_write(bs, sector_num, tmp_buf, 1) < 0) - return -EIO; + if ((ret = bdrv_write(bs, sector_num, tmp_buf, 1)) < 0) + return ret; count -= len; if (count == 0) return count1; @@ -758,8 +760,8 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset, /* write the sectors "in place" */ nb_sectors = count >> BDRV_SECTOR_BITS; if (nb_sectors > 0) { - if (bdrv_write(bs, sector_num, buf, nb_sectors) < 0) - return -EIO; + if ((ret = bdrv_write(bs, sector_num, buf, nb_sectors)) < 0) + return ret; sector_num += nb_sectors; len = nb_sectors << BDRV_SECTOR_BITS; buf += len; @@ -768,11 +770,11 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset, /* add data from the last sector */ if (count > 0) { - if (bdrv_read(bs, sector_num, tmp_buf, 1) < 0) - return -EIO; + if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0) + return ret; memcpy(tmp_buf, buf, count); - if (bdrv_write(bs, sector_num, tmp_buf, 1) < 0) - return -EIO; + if ((ret = bdrv_write(bs, sector_num, tmp_buf, 1)) < 0) + return ret; } return count1; } @@ -1607,7 +1609,7 @@ static void multiwrite_user_cb(MultiwriteCB *mcb) for (i = 0; i < mcb->num_callbacks; i++) { mcb->callbacks[i].cb(mcb->callbacks[i].opaque, mcb->error); qemu_free(mcb->callbacks[i].free_qiov); - qemu_free(mcb->callbacks[i].free_buf); + qemu_vfree(mcb->callbacks[i].free_buf); } } |