iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/mlx4: Fix uninitialized spinlock for 32-bit archs

Browse Source 
uar_lock spinlock was used in mlx4_ib_cq_arm without being initialized
(this only affects 32-bit archs, because uar_lock is not used on
64-bit archs and MLX4_INIT_DOORBELL_LOCK() is a NOP).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein 2007-05-13 17:18:23 +03:00 committed by Roland Dreier
parent 20eebcf09c
commit 26c6bc7b81
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/hw/mlx4/main.c
View File

@ -489,6 +489,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
if (!ibdev->uar_map)
goto err_uar;
MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
INIT_LIST_HEAD(&ibdev->pgdir_list);
mutex_init(&ibdev->pgdir_mutex);