Thus the traverse of the loop may delete nodes, use the safe version.
Signed-off-by: Denis Cheng <[email protected]>
---
drivers/block/nbd.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index c129510..86639c0 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -237,8 +237,7 @@ error_out:
static struct request *nbd_find_request(struct nbd_device *lo, char *handle)
{
- struct request *req;
- struct list_head *tmp;
+ struct request *req, *n;
struct request *xreq;
int err;
@@ -249,8 +248,7 @@ static struct request *nbd_find_request(struct nbd_device *lo, char *handle)
goto out;
spin_lock(&lo->queue_lock);
- list_for_each(tmp, &lo->queue_head) {
- req = list_entry(tmp, struct request, queuelist);
+ list_for_each_entry_safe(req, n, &lo->queue_head, queuelist) {
if (req != xreq)
continue;
list_del_init(&req->queuelist);
--
1.5.2.2
-
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