The current offset of cxt->dev_fd may not be still 0, notably when
blkdev_get_size has to resort to using blkdev_find_size
Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx
--- libfdisk/src/utils.c.original 2014-11-09 02:06:55.000000000 +0000
+++ libfdisk/src/utils.c 2014-11-09 02:07:58.000000000 +0000
@@ -49,6 +49,13 @@ int fdisk_read_firstsector(struct fdisk_
DBG(CXT, ul_debugobj(cxt, "reading first sector "
"buffer [sector_size=%lu]", cxt->sector_size));
+ r = lseek(cxt->dev_fd, 0, SEEK_SET);
+ if (r == -1)
+ {
+ DBG(CXT, ul_debugobj(cxt, "failed to seek to first sector %m"));
+ return -errno;
+ }
+
r = read(cxt->dev_fd, cxt->firstsector, cxt->sector_size);
if (r != cxt->sector_size) {
--
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