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btrfs-progs: convert, handle pwrite error in do_rollback 

Resolves-coverity-id: 1242984
Signed-off-by: David Sterba <dsterba@suse.cz>
master
David Sterba 2015-01-06 18:54:48 +01:00
parent fe283a4fc3
commit 1f7ea87871
1 changed files with 6 additions and 0 deletions
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6
btrfs-convert.c
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@ -2675,6 +2675,12 @@ next_extent:
if (bytenr >= total_bytes)
break;
ret = pwrite(fd, buf, sectorsize, bytenr);
if (ret != sectorsize) {
fprintf(stderr,
"error during zeroing supreblock %d: %d\n",
i, ret);
goto fail;
}
}
sb_bytenr = (u64)-1;