| Message ID | 1445254680-11102-7-git-send-email-guaneryu@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Oct 19, 2015 at 07:37:56PM +0800, Eryu Guan wrote:
> Check trans before dereferencing it.
Have you found a code path where 'trans' can be NULL? A quick search did
not reveal anything.
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diff --git a/ctree.c b/ctree.c index 1434007..f9d972a 100644 --- a/ctree.c +++ b/ctree.c @@ -356,7 +356,7 @@ int btrfs_cow_block(struct btrfs_trans_handle *trans, WARN_ON(1); } */ - if (trans->transid != root->fs_info->generation) { + if (trans && trans->transid != root->fs_info->generation) { printk(KERN_CRIT "trans %llu running %llu\n", (unsigned long long)trans->transid, (unsigned long long)root->fs_info->generation);
Check trans before dereferencing it. Signed-off-by: Eryu Guan <guaneryu@gmail.com> --- ctree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)