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authorAllen Hubbe <Allen.Hubbe@emc.com>2015-07-13 15:07:14 +0300
committerJon Mason <jdmason@kudzu.us>2015-08-09 23:32:22 +0300
commit30a4bb1e5a9d7e283af6e29da09362104b67d7aa (patch)
tree406f81ed8d099e0f75e70d8fbf0dd0d3952f82d7 /drivers/ntb/ntb_transport.c
parent8c9edf63e75f036b42afb4502deb20bbfb5004b4 (diff)
downloadlinux-30a4bb1e5a9d7e283af6e29da09362104b67d7aa.tar.xz
NTB: Fix dereference before check
Remove early dereference of a pointer that is checked later in the code. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb/ntb_transport.c')
-rw-r--r--drivers/ntb/ntb_transport.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index bc556e2d7f62..1c6386d5f79c 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -1692,7 +1692,6 @@ EXPORT_SYMBOL_GPL(ntb_transport_create_queue);
*/
void ntb_transport_free_queue(struct ntb_transport_qp *qp)
{
- struct ntb_transport_ctx *nt = qp->transport;
struct pci_dev *pdev;
struct ntb_queue_entry *entry;
u64 qp_bit;
@@ -1745,7 +1744,7 @@ void ntb_transport_free_queue(struct ntb_transport_qp *qp)
while ((entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q)))
kfree(entry);
- nt->qp_bitmap_free |= qp_bit;
+ qp->transport->qp_bitmap_free |= qp_bit;
dev_info(&pdev->dev, "NTB Transport QP %d freed\n", qp->qp_num);
}