diff options
| -rw-r--r-- | libblkid/src/probe.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libblkid/src/probe.c b/libblkid/src/probe.c index 4fea3ccb4..3f7e43bec 100644 --- a/libblkid/src/probe.c +++ b/libblkid/src/probe.c @@ -539,8 +539,10 @@ unsigned char *blkid_probe_get_buffer(blkid_probe pr, struct list_head *p; struct blkid_bufinfo *bf = NULL; - if (pr->size <= 0) + if (pr->size <= 0) { + errno = EINVAL; return NULL; + } if (pr->parent && pr->parent->devno == pr->devno && @@ -602,6 +604,7 @@ unsigned char *blkid_probe_get_buffer(blkid_probe pr, list_add_tail(&bf->bufs, &pr->buffers); } + errno = 0; return off ? bf->data + (off - bf->off) : bf->data; } |