diff options
Diffstat (limited to 'hw/nvram/spapr_nvram.c')
| -rw-r--r-- | hw/nvram/spapr_nvram.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/hw/nvram/spapr_nvram.c b/hw/nvram/spapr_nvram.c index aa5d2c1f5f..bc355a4348 100644 --- a/hw/nvram/spapr_nvram.c +++ b/hw/nvram/spapr_nvram.c @@ -144,7 +144,15 @@ static void spapr_nvram_realize(VIOsPAPRDevice *dev, Error **errp) int ret; if (nvram->blk) { - nvram->size = blk_getlength(nvram->blk); + int64_t len = blk_getlength(nvram->blk); + + if (len < 0) { + error_setg_errno(errp, -len, + "could not get length of backing image"); + return; + } + + nvram->size = len; ret = blk_set_perm(nvram->blk, BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE, |