In btrfs_read_dev_super(), a wrong parameter for memcpy will copy wrong address of a stack pointer to super_copy. Which will cause a lot of unpredictable error.
What a stupid typo from myself!!!!! Signed-off-by: Qu Wenruo <[email protected]> --- disk-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/disk-io.c b/disk-io.c index f7e6c41..139bc80 100644 --- a/disk-io.c +++ b/disk-io.c @@ -1480,7 +1480,7 @@ int btrfs_read_dev_super(int fd, struct btrfs_super_block *sb, u64 sb_bytenr, if (check_super(buf)) return -1; - memcpy(sb, &buf, BTRFS_SUPER_INFO_SIZE); + memcpy(sb, buf, BTRFS_SUPER_INFO_SIZE); return 0; } -- 2.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
